Document:

EXCEPT AS OTHERWISE PROVED IN SECTION 2.15 OF THE BASE INDENTURE, THIS NOTE MAY
BE TRANSFERRED IN WHOLE, BUT NOT IN PART, ONLY TO ANOTHER NOMINEE OF THE
DEPOSITARY OR TO A SUCCESSOR DEPOSITARY. UNLESS THIS CERTIFICATE IS PRESENTED BY
AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY (55 WATER STREET,
NEW YORK, NEW YORK) TO THE ISSUER OR ITS AGENT FOR REGISTRATION OF TRANSFER,
EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF
CEDE & CO. OR SUCH OTHER NAME AS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF
THE DEPOSITORY TRUST COMPANY AND ANY PAYMENT IS MADE TO CEDE & CO., ANY
TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON
IS WRONGFUL, SINCE THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST
HEREIN.

REGISTERED

[No. R-1                                                    $400,000,000.00]
[No. R-2                                                    $100,000,000.00]

                                                            CUSIP 90390U AB 8

                             USA EDUCATION, INC.

                      SENIOR NOTE DUE FEBRUARY 18, 2003
                               (FLOATING RATE)

Original Issue Date:  February 27, 2001          LIBOR Determination Date:
                                                 Second LIBOR Business Day
                                                 prior to Interest Accrual
                                                 Period

Maturity Date:  February 18, 2003                Interest Payment Dates: *

Interest Rate Basis:  LIBOR (Telerate)           Interest Accrual Period: **

Index Maturity:  Three Months***                 Maximum Interest Rate:
                                                 Maximum permitted by law

Spread:  +0.28%                                  Redeemable On and After:  N/A

Initial Interest Rate: 5.84906%                  Optional Repayment Date(s):
                                                 N/A

*    March 16, June 16, September 16 and December 16 of each year and the
     Maturity Date.

**   From previous Interest Payment Date (or Original Issue Date, in the case of
     the first Interest Accrual Period) through the calendar day before current
     Interest Payment Date (or Maturity Date, in the case of the last Interest
     Accrual Period).

***  Except for the last Interest Accrual Period, which will be based upon a
     two-month index maturity.
<PAGE>

            USA EDUCATION, INC., a Delaware corporation (the "Company"), for
value received, hereby promises to pay to CEDE & CO., or registered assigns, the
principal amount stated above on the Maturity Date shown above and interest on
the principal amount stated above at the rate per annum equal to the Initial
Interest Rate shown above on the first Interest Payment Date shown above and
thereafter at a rate determined in accordance with the provisions on the reverse
hereof, until the principal hereof is fully paid or duly made available for
payment. The Company will pay interest on each Interest Payment Date and on the
Maturity Date, provided if any Interest Payment Date, other than the Maturity
Date, would otherwise be a day that is not a Business Day, such Interest Payment
Date will be postponed until the next calendar day that is a Business Day. If
the Maturity Date is a day that is not a Business Day, principal and interest
will be paid on the next succeeding Business Day, with the same force and effect
as if made on the Maturity Date, and no interest on such payment shall accrue
from or after the Maturity Date. "Business Day" means any day other than a
Saturday, Sunday or Legal Holiday in New York City. The "Regular Record Date"
for each payment is the date one calendar day immediately preceding such
Interest Payment Date or Maturity Date.

            The interest so payable, and punctually paid or duly provided for,
on the Interest Payment Dates referred to above, will, as provided in the
Indenture, be paid to the Person in whose name this Note is registered at the
close of business on the Regular Record Date for such interest, provided that
interest payable on the Maturity Date will be paid to the Person to whom the
principal of this Note is payable. Any such interest which is payable, but is
not punctually paid or duly provided for, on any Interest Payment Date shall
forthwith cease to be payable to the Holder on such Regular Record Date, and may
be paid to the Person in whose name this Note is registered at the close of
business on a special record date for the payment of such defaulted interest to
be fixed by the Trustee, notice whereof shall be given to the Holder of this
Note not less than ten days prior to such special record date, or may be paid at
any time in any other lawful manner not inconsistent with the requirements of
any securities exchange on which the Notes may be listed and upon such notice as
may be required by such exchange, all as more fully provided in the Indenture.
The Company shall pay interest at the applicable interest rate (calculated
quarterly on each LIBOR Determination Date) on overdue principal and, to the
extent permitted by law, on overdue interest.

            Payments of principal and interest will be made at the office or
agency of the Trustee maintained for that purpose in the Borough of Manhattan,
The City of New York, in such coin or currency of the United States of America
as at the time of payment is legal tender for the payment of public and private
debt, by check mailed to the address of the Person entitled thereto as such
address shall appear in the register for this Note, provided that so long as
this Note is represented by a Global Security, each payment shall be made by
wire transfer of immediately available funds, if the registered holder has
provided the Trustee appropriate instructions for such payment.

            The principal hereof and interest due at maturity will be paid upon
maturity by wire transfer of immediately available funds against presentation of
this Note at the office or agency of the Trustee maintained for that purpose in
the Borough of Manhattan, The City of New York.

            REFERENCE IS HEREBY MADE TO THE FURTHER PROVISIONS OF THIS NOTE SET
FORTH ON THE REVERSE HEREOF, WHICH FURTHER PROVISIONS SHALL FOR ALL PURPOSES
HAVE THE SAME EFFECT AS IF SET FORTH ON THE FACE HEREOF.

            This Note shall be governed by and construed in accordance with the
law of the State of New York.

            Unless the certificate of authentication hereon has been executed by
The Chase Manhattan Bank, the Trustee under the Indenture, or its successor
thereunder by the manual signature of one of its authorized signatories, this
Note shall not be entitled to any benefit under the Indenture or be valid or
obligatory for any purpose.
<PAGE>

            IN WITNESS WHEREOF, the Company has caused this instrument to be
duly executed.

Dated:  February 27, 2001

                                       USA EDUCATION, INC.

                                       By: /s/ James C. Lintzenich
                                          -------------------------------------
                                          Name:  James C. Lintzenich
                                          Title: President & Chief Operating
                                                 Officer

                                       By: /s/ John F. Remondi
                                          -------------------------------------
                                          Name:   John F. Remondi
                                          Title:  Executive Vice President &
                                                  Chief Financial Officer

                          CERTIFICATE OF AUTHENTICATION

            This is one of the Notes referred to in the within-mentioned
Indenture.

                                       THE CHASE MANHATTAN BANK, as Trustee

                                       By: /s/ Patricia M. F. Russo
                                          -------------------------------------
                                          Authorized Signature
<PAGE>

                                [Reverse of Note]

                               USA EDUCATION, INC.

                        SENIOR NOTE DUE FEBRUARY 18, 2003

                                 (FLOATING RATE)

            This Note is one of a duly authorized issue of notes of the Company
issued under the Indenture, dated as of October 1, 2000 (the "Base Indenture"),
as supplemented by a Second Supplemental Indenture, dated as of February 27,
2001 (collectively, the "Indenture"), each between the Company and The Chase
Manhattan Bank, as trustee (the "Trustee," which term includes any successor
trustee under the Indenture), to which Indenture and all indentures supplemental
thereto reference is hereby made for a statement of the respective rights and
limitations of rights thereunder of the Company, the Trustee and the Holders of
the Notes, and the terms upon which the Securities are, and are to be,
authenticated and delivered. Capitalized terms used and not otherwise defined in
this Note have the meanings ascribed to them in the Indenture.

            This Note is designated as a Senior Note due February 18, 2003. The
Interest Accrual Period for each Interest Payment Date begins on each Interest
Payment Date and ends on the calendar day before the next Interest Payment Date,
provided that the first Interest Accrual Period begins on February 27, 2001 and
ends on March 15, 2001, the calendar day before the first Interest Payment Date.
The interest rate in effect during each Interest Accrual Period after the first
will be the interest rate determined on the LIBOR Determination Date immediately
preceding such Interest Accrual Period, provided that the interest rate in
effect for the first Interest Accrual Period will be the Initial Interest Rate
specified on the face hereof. Interest shall be computed on the basis of a
360-day year and the actual number of days elapsed in the applicable Interest
Accrual Period. All percentages resulting from any calculations will be carried
to five decimal places (that is, to the one hundred thousandths place), with
five one-millionths being rounded upwards, if necessary. In addition, the
interest rate hereon shall in no event be higher than the maximum rate, if any,
permitted by applicable law.

            Commencing with the first LIBOR Determination Date, and thereafter
on each succeeding LIBOR Determination Date, the rate at which interest on this
Note is payable shall be adjusted. Each such adjusted rate shall be applicable
to the Interest Accrual Period to which it relates.

            Subject to applicable law and except as specified herein, the rate
of interest on this Note for each Interest Accrual Period after the first shall
be Three-month LIBOR plus the Spread (as specified on the face hereof), provided
the rate of interest on this Note for the last Interest Accrual Period shall be
Two-month LIBOR plus the Spread.

            Three-month LIBOR or Two-month LIBOR, for any Interest Accrual
Period, are the London interbank offered rate for deposits in U.S. dollars
having a maturity of three months or two months, respectively, commencing on the
first day of the Interest Accrual Period, which appears on Telerate Page 3750 as
of 11:00 a.m. London time, on the related LIBOR Determination Date. If this rate
does not appear on Telerate Page 3750, the rate for that day will be determined
on the basis of the rates at which deposits in U.S. dollars, having the
applicable maturity and in a principal amount of not less than U.S. $1,000,000,
are offered at approximately 11:00 a.m., London time, on that LIBOR
Determination Date, to prime banks in the London interbank market by the
Reference Banks. The Trustee will request the principal London office of each
Reference Bank to provide a quotation of its rate. If the Reference Banks
provide at least two quotations, the rate for that day will be the arithmetic
mean of the quotations. If the Reference Banks provide fewer than two
quotations, the rate for that day will be the arithmetic mean of the rates
quoted by major banks in New York City, selected by the Trustee, at
approximately 11:00 a.m. New York time, on that LIBOR Determination Date, for
loans in U.S. dollars to leading European banks having the applicable maturity
and in a principal amount of not less than U.S. $1,000,000. If the banks
selected as described above are not providing quotations, Two-month LIBOR or
Three-month LIBOR in effect for the applicable Interest Accrual Period will be
Two-month LIBOR or Three-month LIBOR, as applicable, as most recently quoted on
Telerate Page 3750.

            "LIBOR Business Day" means any day on which banks in New York City
and the City of London are open for the transaction of international business.

            "LIBOR Determination Date" means, for each Interest Accrual Period,
the second LIBOR Business Day before the beginning of that Interest Accrual
Period.

            "Reference Banks" means four major banks in the London interbank
market selected by the Trustee.

            "Telerate Page 3750" means the display page so designated on the
Bridge Telerate Capital Markets Report or any other page that may replace that
page on that service for the purpose of displaying comparable rates or prices.

            The Trustee shall calculate the interest rate hereon in accordance
with the foregoing and will confirm in writing such calculation to the Company
and the Paying Agent (if other than the Trustee) immediately after each
determination. All determinations made by the Trustee shall be, in the absence
of manifest error, conclusive for all purposes and binding on the Company and
Holders of the Notes. At the request of the Holder hereof, the Trustee will
provide to the Holder hereof the interest rate hereon then in effect and, if
determined, the interest rate which will become effective as of the next
Interest Accrual Period.

            If an Event of Default with respect to the Notes shall occur and be
continuing, the Trustee, by notice to the Company, or the Holders of at least
25% in principal amount of all of the outstanding Notes, by notice to the
Company and the Trustee, may declare the principal of all the Notes due and
payable in the manner and with the effect provided in the Indenture.

            The Indenture permits, with certain exceptions as therein provided,
the amendment thereof and the modification of the rights and obligations of the
Company and the rights of the Holders of the Notes at any time by the Company
and the Trustee with the consent of the Holders of a majority in aggregate
principal amount of the Notes at the time outstanding. The Indenture also
contains provisions permitting the Holders of specified percentages in aggregate
principal amount of the Notes at the time outstanding, on behalf of the Holders
of all Notes, to waive compliance by the Company with certain provisions of the
Indenture and certain past defaults under the Indenture and their consequences.
Any such consent or waiver by the Holder of this Note shall be conclusive and
binding upon such Holder and upon future Holders of this Note and of any Note
issued upon the registration of transfer hereof or in exchange therefor or in
lieu hereof whether or not notation of such consent or waiver is made upon this
Note.

            Holders of Notes may not enforce their rights pursuant to the
Indenture or the Notes except as provided in the Indenture. No reference herein
to the Indenture and no provision of this Note or the Indenture shall alter or
impair the obligation of the Company, which is absolute and unconditional, to
pay the principal of and interest on this Note at the time, place, and rate, and
in the coin or currency, herein prescribed.

            As provided in the Indenture and subject to certain limitations
therein set forth, the transfer of this Note may be registered on the Note
register of the Company, upon surrender of this Note for registration of
transfer at the office or agency of the Company in the Borough of Manhattan, The
City of New York, duly endorsed by, or accompanied by a written instrument of
transfer in form satisfactory to the Company, and this Note duly executed by,
the Holder hereof or by his attorney duly authorized in writing and thereupon
one or more new Notes, of authorized denominations and for the same aggregate
principal amount, will be issued to the designated transferee or transferees.

            The Notes are issuable only in registered form without coupons in
denominations of $1,000 or any amount in excess thereof which is an integral
multiple of $1,000. As provided in the Indenture and subject to certain
limitations therein set forth, this Note is exchangeable for a like aggregate
principal amount of Notes of different authorized denomination as requested by
the Holder surrendering the same.

            No service charge will be made for any such registration of transfer
or exchange, but the Company may require payment of a sum sufficient to cover
any tax or other governmental charge payable in connection therewith.

            Prior to the due presentment of this Note for registration of
transfer, the Company, the Trustee and any agent of the Company or the Trustee
may treat the Person in whose name this Note is registered as the owner hereof
for all purposes, whether or not this Note be overdue, and neither the Company,
the Trustee nor any such agent shall be affected by notice to the contrary.
<PAGE>

                                  ABBREVIATIONS

The following abbreviations, when used in the inscription on the face of this
instrument, shall be construed as though they were written out in full according
to applicable laws or regulations:

TEN COM     -     as tenants in common

TEN ENT     -     as tenants by the entireties

JT TEN      -     as joint tenants with right of survivorship and not as
                  tenants in common

UNIF GIFT MIN ACT - ________________________ Custodian _________________________
                             (Cust)                            (Minor)

                                 Under Uniform Gifts to Minors Act

                             ________________________________________

                             _____________________________ (State)

Additional abbreviations may also be used though not in the above list.

                         ____________________________

                                   Assignment

                      FOR VALUE RECEIVED, the undersigned
                      hereby sell(s), assign(s) and transfer(s) unto

________________________________________________________________________________
PLEASE INSERT SOCIAL SECURITY OR OTHER IDENTIFYING NUMBER OF ASSIGNEE

________________________________________________________________________________

________________________________________________________________________________
PLEASE PRINT OR TYPEWRITE NAME AND ADDRESS INCLUDING POSTAL ZIP CODE OF
ASSIGNEE

________________________________________________________________________________
the within Note and all rights thereunder, hereby irrevocably constituting
and appointing

________________________________________________________________________________
Attorney to transfer said Note on the books of the Company, with full power of
substitution in the premises.

Dated:  __________________________        ________________________________

_______________________________________
         (Signature Guarantee)SECOND AMENDMENT TO CREDIT AND SECURITY AGREEMENT

         This  Amendment,  dated as of November 30, 2000, is made by and between
NACO  INDUSTRIES,  INC., a Utah corporation  (the  "Borrower"),  and WELLS FARGO
BUSINESS CREDIT, INC., a Minnesota corporation (the "Lender").

                                    Recitals
                                    --------

         The  Borrower  and the Lender have  entered  into a Credit and Security
Agreement  dated as of April  22,  1999,  as  previously  amended  (the  "Credit
Agreement"). Capitalized terms used in these recitals have the meanings given to
them in the Credit Agreement unless otherwise specified.

         The  Borrower has  requested  that  certain  amendments  be made to the
Credit Agreement,  which the Lender is willing to make pursuant to the terms and
conditions set forth herein.

         NOW,  THEREFORE,  in  consideration  of the  premises and of the mutual
covenants and agreements herein contained, it is agreed as follows:

         1. Defined Terms.  Capitalized  terms used in this Amendment  which are
defined in the Credit Agreement shall have the same meanings as defined therein,
unless  otherwise  defined  herein.  In  addition,  Section  1.1 of  the  Credit
Agreement  is amended by adding or amending,  as the case may be, the  following
definitions:

                  "Interest  Rate  Margin"  means  three  and  one-half  percent
         (3.5%);  provided,  however,  that if no Default Period then exists and
         the Borrower's  audited financial  statements for the Borrower's fiscal
         year ending  November 30, 2000,  demonstrate  that the  Borrower's  Net
         Income  equals or exceeds  $100,000,  the Interest Rate Margin shall be
         reduced by one-half of one percent (0.5%) on the first day of the month
         following  the month  such  financial  statements  are  delivered;  and
         provided  further  that  if no  Default  Period  then  exists  and  the
         Borrower's audited financial  statements for the Borrower's fiscal year
         ending  November 30, 2001,  demonstrate  that the Borrower's Net Income
         equals or exceeds  $150,000,  the Interest Rate Margin shall be reduced
         by  one-half  of one  percent  (0.5%)  on the  first  day of the  month
         following the month such financial statements are delivered.

                  "Inventory Advance Rate" means, from December 1, 2000, through
         May 31, 2001, 70%; from June 1, 2001,  through  November 30, 2001, 65%;
         and at all other times, 60%.

                  "Maturity Date" means April 30, 2003.

                                       1
<PAGE>

         2.  Section 6.13 of the Credit  Agreement is hereby  amended to read in
its entirety as follows:

                  "Section  6.13  Minimum  Book Net  Worth.  The  Borrower  will
         maintain,  as of each date  described  below,  its Book Net Worth at an
         amount not less than the amount set forth opposite such date:
<TABLE>
<CAPTION>

                           Date                                             Minimum Book Net Worth
                           ----                                             ----------------------
<S>                                                                                <C>
                    November 30, 2000                                              $703,000

                    February 28, 2001                                              $633,000

                       May 31, 2001                                                $838,000

                     August 31, 2001                                               $833,000

                November 30, 2001 and the
           last day of each quarter thereafter                                     $768,000"

         3.  Section 6.14 of the Credit  Agreement is hereby  amended to read in
its entirety as follows;

                  "Section 6.14 Minimum Net Income. The Borrower will achieve as
         of each date  described  below,  cumulative Net Income of not less that
         the amount set forth  opposite such date (amounts  shown in parentheses
         are negative);

                           Date                                             Minimum YTD Net Income
                           ----                                             ----------------------
                    November 30, 2000                                              $(20,000)

                    December 31, 2000                                             $(114,000)

                     January 31, 2001                                             $(130,000)

                    February 29, 2001                                             $(110,000)

                      March 31, 2001                                               $(45,000)

                      April 30, 2001                                                $40,000

                       May 31, 2001                                                 $95,000

                      June 30, 2001                                                $140,000

                      July 31, 2001                                                $140,000

                     August 31, 2001                                                $90,000

                    September 30, 2001                                              $75,000

                     October 31, 2001                                               $50,000

                    November 30, 2001                                               $25,000"

</TABLE>

                                       2
<PAGE>

         4.  Section 6.15 of the Credit  Agreement is hereby  amended to read in
its entirety as follows:

                  "Section 6.15 New  Covenants.  On or before  October 31, 2001,
         the  Borrower  and the Lender  shall agree on new  covenant  levels for
         Sections  6.13,  6.14 and 7.10 for periods after November 30, 2001. The
         new covenant  levels will be based on the  Borrower's  projections  for
         such periods and shall be no less stringent than the present levels."

         5.  Section 7.10 of the Credit  Agreement is hereby  amended to read in
its entirety as follows:

                  "Section  7.10 Capital  Expenditures.  The  Borrower  will not
         incur or contract to incur Capital  Expenditures  of more than $200,000
         in the aggregate during any fiscal year."

         6.  No Other Changes. Except as explicitly  amended by this  Amendment,
all of the terms and  conditions  of the Credit  Agreement  shall remain in full
force and effect and shall apply to any advance or letter of credit thereunder.

         7.  Waiver of Defaults.  The  Borrower is in default of Section 6.13 of
the Credit  Agreement  as of August 31,  2000,  and  Section  6.14 of the Credit
Agreement as of May 31, 2000, (collectively,  the "Default"). Upon the terms and
subject to the conditions set forth in this Amendment,  the Lender hereby waives
the Defaults.  This waiver shall be effective only in this specific instance and
for the  specific  purpose  for which it is  given,  and this  waiver  shall not
entitle  the  Borrower  to any other or further  waiver in any  similar or other
circumstances.

         8.  Amendment  Fee.  The  Borrower  shall pay the Lender as of the date
hereof  a  fully  earned,   non-refundable  fee  in  the  amount  of  $5,000  in
consideration of the Lender's execution of this Amendment.

         9. Conditions  Precedent.  This Amendment,  and the waiver set forth in
Paragraph 7 hereof,  shall be effective  when the Lender shall have  received an
executed original hereof, together with each of the following, each in substance
and form acceptable to the Lender in its sole discretion:

                  (a) The Acknowledgment and Agreement of Guarantor set forth at
         the end of this Amendment, dully executed by the Guarantor.

                  (b) Payment of the fee described in Paragraph 8.

                  (c) Such other matters as the Lender may require.

                                       3
<PAGE>

         10. Representations and Warranties.  The Borrower hereby represents and
warrants to the Lender as follows:

                  (a) The  Borrower  has all  requisite  power and  authority to
         execute this Amendment and to perform all of its obligation  hereunder,
         and this Amendment has been duly executed and delivered by the Borrower
         and  constitutes  the  legal,  valid  and  binding  obligation  of  the
         Borrower, enforceable in accordance with its terms.

                  (b) The execution, delivery and performance by the Borrower of
         this  Amendment  have been duly  authorized by all necessary  corporate
         action and do not (i) require any authorization, consent or approval by
         any  governmental  department,  commission,  board,  bureau,  agency or
         instrumentality, domestic or foreign, (ii) violate any provision of any
         law,  rule or regulation  or of any order,  writ,  injunction or decree
         presently  in effect,  having  applicability  to the  Borrower,  or the
         articles of incorporation  or by-laws of the Borrower,  or (iii) result
         in a breach of or  constitute a default  under any indenture or loan or
         credit agreement or any other  agreement,  lease or instrument to which
         the Borrower is party or by which it or its  properties may be bound or
         affected.

                  (c) All of the  representations  and  warranties  contained in
         Article V of the  Credit  Agreement  are  correct on and as of the date
         hereof as though made on and as of such date, except to the extent that
         such representations and warranties relate solely to an earlier date.

         11. References.   All  references  in the  Credit  Agreement  to  "this
Agreement"  shall be deemed to refer to the Credit  Agreement as amended hereby;
and any and all  references  in the Security  Documents to the Credit  Agreement
shall be deemed to refer to the Credit Agreement as amended hereby.

         12. No Other  Waiver.  Except as set forth in  Paragraph 7 hereof,  the
execution of this Amendment and acceptance of any documents related hereto shall
not be deemed to be a waiver of any Default or Event of Default under the Credit
Agreement or breach,  default or event of default under any Security Document or
other  document  held by the  Lender,  whether  or not known to the  Lender  and
whether or not existing on the date of this Amendment.

         13. Release.     The  Borrower,   and  the  Guarantor  by  signing  the
Acknowledgment   and  Agreement  of  Guarantor  set  forth  below,  each  hereby
absolutely and  unconditionally  releases and forever discharges the Lender, and
any  and  all  participant,   parent  corporations,   subsidiary   corporations,
affiliated corporations,  insurers, indemnitors, successors and assigns thereof,
together  with all of the present  and former  directors,  officers,  agents and
employees of any of the foregoing, from any and all claims, demands or causes of

                                       4
<PAGE>

action of any kind,  nature or description,  whether arising in law or equity or
upon contract or tort or under any state or federal law or otherwise,  which the
Borrower or such  Guarantor  has had,  now has or has made claim to have against
any such person for or by reason of any act,  omission,  matter,  cause or thing
whatsoever  arising from the beginning of time to and including the date of this
Amendment,  whether  such  claims,  demands  and causes of action are matured or
unmatured or known or unknown.

         14. Costs and  Expenses.  The Borrower  hereby  reaffirms its agreement
under the  Credit  Agreement  to pay or  reimburse  the Lender on demand for all
costs  and  expenses  incurred  by the  Lender  in  connection  with the  Credit
Agreement,  the Security Documents and all other documents contemplated thereby,
including  without  limitation all reasonable  fees and  disbursements  of legal
counsel.  Without  limiting  the  generality  of  the  foregoing,  the  Borrower
specifically  agrees to pay all fees and  disbursements of counsel to the Lender
for the services performed by such counsel in connection with the preparation of
this Amendment and the documents and instruments incidental hereto. The Borrower
hereby  agrees that the Lender may, at any time or from time to time in its sole
discretion and without further authorization by the Borrower, make a loan to the
Borrower under the Credit Agreement,  or apply the proceeds of any loan, for the
purpose of paying any such fees,  disbursements,  costs and expenses and the fee
required under Paragraph 8 hereof.

         15. Miscellaneous.  This Amendment and the Acknowledgment and Agreement
of Guarantor may be executed in any number of  counterparts,  each of which when
so  executed  and  delivered  shall  be  deemed  an  original  and all of  which
counterparts, taken together, shall constitute one and the same instrument.

         IN WITNESS WHEREOF, the parties hereto have caused this Amendment to be
duly executed as of the date first written above.

WELLS FARGO BUSINESS CREDIT, INC.      NACO INDUSTRIES, INC.

By:                                    By:
   --------------------------------       ------------------------------------
   Its:                                   Its:
       ----------------------------           --------------------------------

                                       5
<PAGE>

                    ACKNOWLEDGMENT AND AGREEMENT OF GUARANTOR

         The  undersigned,  a guarantor of the  indebtedness of Naco Industries,
Inc. (the  "Borrower")  to Wells Fargo  Business  Credit,  Inc.  (the  "Lender")
pursuant to a Guaranty dated as of April 22, 1999 (the  "Guaranty"),  hereby (i)
acknowledges  receipt of the  foregoing  Amendment;  (ii)  consents to the terms
(including  without  limitation  the  release set forth in  Paragraph  13 of the
Amendment) and execution thereof;  (iii) reaffirms his obligations to the Lender
pursuant to the terms of his Guaranty; and (iv) acknowledges that the Lender may
amend,  restate,  extend, renew or otherwise modify the Credit Agreement and any
indebtedness or agreement of the Borrower, or enter into any agreement or extend
additional or other credit  accommodations,  without  notifying or obtaining the
consent  of  the  undersigned  and  without   impairing  the  liability  of  the
undersigned  under his  Guaranty  for all of the  Borrower's  present and future
indebtedness to the Lender.

                                           -------------------------------------
                                           Verne Bray

                                       6
<PAGE>

                      SUPPLEMENTAL SECRETARY'S CERTIFICATE

         I, Verne E. Bray, the secretary of Naco Industries, Inc., a corporation
formed under the laws of the State of Utah,  hereby  certify that the  following
person presently is duly constituted, appointed and acting as an officer of said
corporation  and is duly  authorized  to sign and to act  generally on behalf of
said  corporation  and that the signature  appearing  below is the authentic and
official signature of said officer:

                 Name                 Title                     Sample Signature
                 ----                 -----                     ----------------
            Michael Hopkins         President
                                                        ------------------------

         The  officer  named  herein is  designated  in  addition to any and all
persons previously  designated as authorized to sign or to act on behalf of said
corporation.

         IN WITNESS WHEREOF, I have hereunto subscribed by name this ____ day of
November, 2000.

                                             -----------------------------------
                                             Secretary

Attest by One Other Officer

-------------------------------

                                       7

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