PRODUCT CATALOG
2024

SUEHIRO SEIKO.CO,.LTD

INTRODUCTION

Tsumura Worldʼs Highest Quality
Chain Saw Guide Bars & Accessories
Tsumura chain saw bars & accessories are manufactured and assembled on
advanced technology machines and equipment to provide high standard ofdurability , strength, ﬁnish and accuracy in the heat treatment process.
Our chain saw guide bars also incorporate uniform groove gauge tolerances
for precise chain ﬁt and improved cutting stability over bar nose.
The sprocket noses are made of quality material and carefully heat treated andthe roller bearings are the best ones available. Even the rivets were studied todetermine the strongest and most compatible material speciﬁcations.
Our bars are sold to all markets throughout the world and are the choice ofprofessional loggers everywhere.
-1

TECHNOLOGYLASER CUTTING
The Laser cutting process allows
us ﬂexible and fast cutting formaking any kinds of bar shape.
Any prototype can be madeaccording to your request.
Please feel free to consult us
about prototype manufacturing.

SALT BATH HEAT TREATMENT
Guide bars require both of contrasting characteristics
of toughness and hardness.
Suehiro Seiko has adopted salt heat treatment thatdraws both of the contrasting characteristics
maximally. The salt bath heat treatment is the best way
to achieve ideal steel which has toughness andhardness.
Normally, Steel is heated over 800℃ immediately, but
the salt bath heat treatment takes up slow heating
method. Then, good hardened steel structure, which isstable and less distortion, can be obtained.

-2-

TECHNOLOGYSTRAIGHTENING PROCESS
A saw chain rotates faster than 25m/sec on the
chain tracking groove of guide bars, so straight rail ofguide bar is important.
If the rail is not straight, you would have sometrouble. For example, guide bar would be biased wear.
Also, you canʼt cut tree straightly.
Thatʼs why, our company has three time straightening
process which are arranged after the press process,the heat treatment, and ﬁnishing process. thestraightening process is carefully done byprofessional manually.

LIGHT&TOUGH
Tsumuraʼs chain saw guide bars

The TSUMURA Light-Weight Guide Bar

incorporate a unique design that makes
the lightest guide bars available today.
Dove-tailed notches are staggered and cut
into the bar surface and packed with hardresin which reduces the weight of theguide bar by about 20%.
This is improves cutting eﬃciency andstability and also reduces user fatigue. In
keeping pace with the progress in thetechnology.

-3-

TECHNOLOGYTSUMURA Premium Light
The TSUMURA Premium Light Bar is a model that has been changed from conventional
reverse tapered lightweight processing to the light weight processing, forming a hexagonal
beam in the center and ﬁlling it with resin,achieving both lightness and durability. 5-10%
lighter than conventional lightweight guide bars. By using black resin, it has a luxurious
design.

The guide bar is designed to form a Hexagonal
beam and be strong like a honeycomb.
The newly adopted reinforced resin is black,andthe design has been completely redesigned.
The size of the hexagon varies depending on theguide bar.

1 Rivet Super Slim Guide Bar
This is a 1/4 pitch guidebook that isthinner than the conventional 1 rivet type
guide bar. There are 1/4 .043G type and1/4 .050 type. The tip radius of theconventional CL type is R17.3,while the
AL type is R13,which reduces kickback.
In addition, despite the thin tip, thedurability has been signiﬁcantly improvedby completely reviewing the design of the
sprocket. In the durability test of the tip,
it showed more than twice the durabilityof conventional products.
These are the test results from oursprocket durability testing machine.

-4-

GUIDE BARS
１RivetSuper Slim

８T Laminated Guide Bar（AL type）

Part Number

Speciﬁcation

Mount

099AL110" .050 1/4 60E

A006

726AL110" .050 1/4 60E

Multi

727AL1

12" .050 1/4 68E

Multi

684AL110" .043 1/4 60E

A006

685AL1

12" .043 1/4 68E

A006

724AL110" .043 1/4 60E

Multi

759AL1

14" .043 1/4 72E

Multi

301AL110" .043 1/4 60E

A012

302AL1

12" .043 1/4 68E

A012

677AL18” .043 1/4 48E

A006

678AL110" .043 1/4 56E

A006

679AL1

12" .043 1/4 64E

A006

680AL1

14" .043 1/4 72E

A006

681AL1

16" .043 1/4 80E

A006

682AL1

18" .043 1/4 88E

A006

-5-

GUIDE BARS
Laminated Guide Bar

A laminated guide bar is consists of 3 steel plates which is welded and all of“TSUMURA” laminated type have built in sprocket on the bar tips.
Generally, laminated bar is considered as economical type compared to Solid guidebar.
Sprocket rotate very high-speed so chain oil must be supplied certainly. It is essential
to clean oil hole after using chainsaw/ﬁnish using chainsaw. It is also important toinject grease before/after using chainsaw.
We deal in single rivet type (BL,CL,FL,QL), 4 rivet type and 5 rivet laminated guidebars.
CL,EL,MC,UC type is light weight edition with processed middle plate.

-6-GUIDE BARSSolid Guide Bar

There are two types of solid guide bar. One is replaceable sprocket nose type and the other ishard nose type which stelite are welded on Tip. Carving guide bar is also considered as hard
nose bar with slim tip.
Solid guide bars are manufactured from one plate of super hard alloyed steel SKS-51 by
cutting groove. Also, we adopt salt heat treatment which is the best way to achieve ideal steel
which has hardness and toughness.
Solid guide bar is tougher than laminated guide bar because it is manufactured from one
plate.
Besides, Solid sprocket nose guide bar nose can be replaceable and adequate change of nosepart will extend guide bar life.
It is essential to clean oil hole cleaning after using chainsaw. Solid sprocket nose type needs
grease inject after/before using chainsaw.
We also deal in each type light weight edition which is about 20% lighter than standard type.

-7-

GUIDE BARSSingle Rivet Type Laminated Guide Bar (BL,CL,FL,QL Type Guide Bar)
These guide bars are single rivet type and low kick back

Gauge

LengthBL.04312”-16”

These guide bars are not only for casual users but also for

FL

.043

8”-10”

landscape gardener who works long time, fruits farm

CL

.050

8”-16”

QL.050

8”-16”

speciﬁcation because we adopt sprocket nose as smaller
as possible.

farmer, and professional loggers who attend to pruning
works.
CL type guide bar is light edition which process middle

Light

○

PITCH

TEETH COUNT

1/4

10

3/8LP

7

plate and it will help comfortable works.
we deal in 1/4 pitch, 3/8LP pitch. We also deal in 8”-16”
length of guide bar. 1/4 tooth count is 10 and 3/8LP toothcount is 7.

4 Rivet Type Laminated Super Slim Laminated Guide Bar (EL Type)EL type guide bars are developed for 25cc-30cc classchainsaw. EL type is a 4 rivet type guide bar that can

PITCH

TEETH COUNT

1/4

12

3/8LP

8

be used in a wide range of applications from fruits
farm pruning to ﬁrewood split.
We deal in 1/4, 3/8LP type guide bar. 1/4 tooth countis12, 3/8LP tooth count is 8. EL type is the slimmest 4
rivet type guide bar. We have 12”-14” length of guide-8-GUIDE BARS
4 RIVET TYPE LAMINATED SUPER SLIM GUIDE BAR .325 VERSION (UL,UC TYPE)UL,UC type is the slimmest type .325 pitch
guide bar which is low kick back speciﬁcation.
It is suitable for casual users and professional
users comfortably.

PITCH

TEETH COUNT

UC type is light weight edition with processed

.325

10

middle plate and it will reduce workers burden.

4 RIVET TYPE LAMINATED SLIM GUIDE BAR (ML,MC TYPE)
ML, MC type is little bit wider than EL type guidebar. We deal in 1/4 pitch and 3/8LP pitch ML,MC
type. We also deal in 12”-18” length of guide bar.
ML,MC type correspond to 42cc-43cc classchainsaw. It is suitable not only professional users
but also casual users.
MC type is a lightweight edition with processed
middle plate and it will help to reduce workers
burden.

-9-

PITCH

TEETH COUNT

1/4

13

3/8LP

9

GUIDE BARS
4 RIVET TYPE LAMINATED SLIM GUIDE BAR .325 PITCH VERSION (SL TYPE)
SL type is a .325 pitch guide bar which is little bit
wider than UL,UC type. We deal in13”-20” lengthof SL type guide bar.
Compared to UL, UC type, SL type thicker plate

PITCH

TEETH COUNT

and chain gauge and guide face are polished by

.325

11

grinding stone.
This guide bar can be used for genuine wood
cutting and correspond to 50cc chainsaw class.

5 RIVET TYPE LAMINATED STANDARD GUIDE BAR (GL TYPE)
GL type is a 5 rivet standard guide bar which is madeof thick plate, chain gauge, and guide face are polishedby grinding stone carefully.
We only produce .058 gauge.

-10-

PITCH

TEETH COUNT

3/8

11

GUIDE BARSREPLACEABLE SOLID SPROCKET NOSE SUPER SLIM GUIDE BAR 1/4,3/8LP Version (XK type)
XK type is a 1/4 or 3/8LP pitch super slim solid
guide bar which is low kick back speciﬁcation.
XK type guide bar is for professional users who
require lightness and toughness.
We deal 14” and 16” length of XK type.
XK type is stock only.

PITCH

TEETH COUNT

1/4

13

3/8LP

9

REPLACEABLE SOLID SPROCKET NOSE SUPER SLIM GUIDE BAR (ZR, ZK TYPE)

ZR,ZK type is a .325 pitch super slim guide bar
which is low kick back speciﬁcation.
Compared to same size slim guide bar, ZR,ZK type islighter and its eﬀective length is longer.
We recommend to professional chainsaw users who
pursue the lightness.
We deal in 14”-18” length of ZR, ZK type guide bar
and we recommend to use under 42cc classchainsaw.
ZK type is the light edition which is about 20%
lighter than ZR type.

-11-

PITCH

TEETH COUNT

.325

10

GUIDE BARSREPLACEABLE SOLID SPROCKET NOSE SLIM GUIDE BAR (SR, SK TYPE)
SR type is a .325 pitch guide bar which is low kickback speciﬁcation.
We deal in 13”-24” length of guide bar. This type isthe most popular guide bar for professional users.

PITCH

TEETH COUNTThis type is corresponded to 60cc class engine

.325

11

chainsaw.
SK type with embedded hard resin is about 20%
lighter than SR type.

REPLACEABLE SOLID SPROCKET NOSE STANDARD GUIDE BAR (FV,FK Type)
This is the standard type solid sprocket nose
guide bar. 3/8 pitch, .325 pitch, and .404 pitch
replaceable noses are available.(※ If you use
diﬀerent sprocket nose, you have to adapt mortar
mount sprocket pitch and sprocket nose pitch.

PITCH

TEETH COUNT

.325

12

3/8

11

.404

10

Also you have to change drive link count to besuitable circumference.)-12-

GUIDE BARSHARD NOSE SOLID GUIDE BAR（HT, HK TYPE)
Stelite alloy is gas welded to the nose of guide bar. There are no sprocket on the nose,
although, rotational speed is reduced about 10%, failure rate is down compared to sprocket
nose guide bar. It shows lower kick back compared to sprocket nose guide bar.
We recommend hard nose guide bar for professional users who works in very hardenvironment, and who do not like to be interrupted by unpleasant sprocket accidents.
We deal in 8”-36” of guide bars. HK type is a light weight edition which is about 20% lighter
than HT type.

-13-

GUIDE BARSCARVING GUIDE BAR
Stelite alloy is gas welded to the nose and it makes high resistant to wear. Also it makes
possible to thrust cutting. Carving guide bar can be used for fruits farm pruning, tree pruning
and chainsaw art.
We deal in 8”-22” carving guide bar. Also, minimum nose radius is 8mm and it is suitable fordetailed work such as chainsaw art.
HK type is a light weight edition which is about 20% lighter than HT type (Standard type).

-14-

GUIDE BARSCARVING GUIDE BAR PART NUMBER&SPEC

LightStandard

Spec

Nose radius

693HT08” .050 1/4 52E A002

R10

001HK0694HT010” .050 1/4 60E A002

R10

695HK0695HT012” .050 1/4 68E A002

R10

254LH012” .050 1/4 64E A011

R12.5

696HT014” .050 1/4 76E A002

R1014” .050 1/4 72E A011

R12.5

253LH016” .050 1/4 80E A010

R12.5

540CH016” .050 1/4 86E
S073( A006)

R10

375LH018” .058 .325 72E A012

R12.5

696HK0255GK0Special Carving Guide Bar
Special Carving Bars are developed by TSUMURA andKEIJI KIDOKORO who is a world chainsaw art champion.
We recommend these guide bars for chainsaw artist who
would like to make precise design.

-15-

GUIDE BARSCARVING GUIDE BAR PART NUMBER&SPEC

Special Carving Guide Bar Table
Part number

Spec

Nose R

297KC09” .043 1/4 56E A011

R8

723KC0

9" .043 1/4 56E Multi

R8

289KC012" .043 1/4 64E Stihl MS150

R8718KC012” .043 1/4 64E Multi

R8

694KC010” .050 1/4 60E A006

R8

726KC010" .050 1/4 60E Multi

R8

695KC012" .050 1/4 68E A006

R8

727KC012" .050 1/4 68E Multi

R8

696KC014” .050 1/4 76E

A006

R8

728KC014" .050 1/4 76E Multi

R8

697KC016” .050 1/4 84E A006

R8

729KC016" .050 1/4 84E

R8230KC020” .050 .325 81E A010

R12.5

460KC020" .050 3/8LP 72E A013

R15.25720KC020" .050 3/8LP 72E Multi

R15.25378KC022” .058 .325 84E A012

R12.5

-16-

Multi

GUIDE BARSSAW CHAIN PART NUMBER TABLE.043(1.1mm)

1/4.050(1.3mm).058(1.5mm).063(1.6mm)

Oregon 20,33,95 type

Oregon 21,34 type

Oregon 22,35 type

Carlton JK1C,JK1L

Carlton JK2C,JK2L

Carlton JK3C,JK3L

Stihl 23RS

Stihl 25RM

Stihl 26RM

Oregon 72 type

Oregon 73 type

Oregin 75 type

Carlton JA1P, JA1L

Carlton JA2P, JA2L

Carlton JA3P,JA3L

Stihl 33RS/33RSK

Stihl 35RS

Stihl 36RS/36RSK

Oregon 58 type

Oregon 27,59,68 type

Carlton JB2P,JB2L,

Carlton JB3P,JB3L

Oregon 25 type,
Carlton JE1MC
Stihl 13RM

3/8LP

Oregon 90 type
Stihl 61PMM

Oregon 91 type
Carlton JN1C, JN1CG
Stihl 63PM

325

•3/8

404

Stihl 46RS

-17-

HOW TO READ TSUMURA GUIDE BAR PART NUMBER

４０８ FK ４
NOSE PITCH
0 = all pitches available
2 = 1/4 pitch
3 = 3/8 Low proﬁle4 = 3/8 pitch
5 = .404 pitch

PART NUMBER

BAR TYPEHT : Hard Nose Solid Guide Bar
FV : Replaceable Solid Sprocket Nose
Standard Guide Bar
SR : Replaceable Solid Sprocket Nose Slim
Guide Bar .325 Pitch Version
ZR : Replaceable Solid Sprocket Nose Super
Slim Guide Bar .325 Pitch Version
GL : 5 Rivet type Laminated Standard Guide
Bar
SL : 4 Rivet Type Laminated Slim Guide Bar.325 Pitch Version
UL : 4 Rivet Type Laminated Super Slim
Guide Bar
ML : 4 Rivet Type Laminated Slim Guide Bar
BL,CL,FL,QL : Single Rivet Type LaminatedGuide Bar (CL type is Light
Weight Type)HK : Light Weight Hard Nose Solid Guide
Bar
FK : Light Weight Replaceable Solid
Sprocket Nose Standard Guide Bar
SK : Light Weight Replaceable Solid
Sprocket Nose Slim Guide Bar .325
Pitch Version
ZK : Light Weight Solid Sprocket Nose
Super Slim Guide Bar .325 Pitch
Version
UC : Light Weight 4 Rivet Type LaminatedSuper Slim Guide Bar
MC : Light Weight 4 Rivet Type LaminatedSuper Slim Guide Bar
EL : Light Weight 4 Rivet Type LaminatedSuper Slim Guide Bar

If you can not ﬁnd guide bar what you are looking for, please feel free tocontact us. We have variety of guide bar and not show everything in thiscatalog.

-18-

GUIDE BARSGUIDE BAR MATCH

Echo
Guide Bar
Mount Type
Chainsaw
Model

A001
CS250T
CS260T
CS270
CS3411G
CS350
CS3611G
CS37RSCS42RS
CSE2600T
CSE2700
CSE2701T
CSE3200
CSE3201
CSE3500
CSE3501
CSV375
CSV395SP
CSVE3201
CSE3500
CSE3501
CSV375
CSV395SP
CSVE3201
CSVE3202G
CSVE3203G
CSVE325
CSVE345

A002

A003

CS250T
CS260T
CS270T
CS3411G
CS350
CS3611G
CSE2600T
CSE2700W
CSE2701T
CSE2701W
CSE3200
CSE3201
CSE3201T
CSE3500
CSE3501
CSVE3201G
CSVE3202G
CSVE325
CSVE345
CSVE3502G
CSVE355

CS540
CSE3200
CSE3200T
CSE3500
CSV375
CSV395SP
CSV395SPH
CSV4401
CSV5001
CSV5001H
CSVE325
CSVE345
CSVE355
CSVE366
CSVE376
CSVE376H
CSVE396
CSVE396H
CSVE397
CSVE397H
CSVE4501
CSVE4501H
CSVE4502
CSVE4502H

CSVE3502G
CSVE355
CSVE366
CSVE376
CSVE376H
CSVE396
CSVE397-19-

A004
CSV672
CSV6000

GUIDE BARSGUIDE BAR MATCH

Echo

-20-

GUIDE BARSGUIDE BAR MATCH

SHINDAIWA
Guide Bar
Mount Type
Chain Saw
Model

A002

A006

E1027TSE1027SE1029S
SSE300E1032S
SSE360E1036S
E350
E1127TS
SSE300S
EA300S
E350AV
SSE360S
EA360S
E1227TSE1227S
E1132SE1035S
E350AV
E1026T
EA2030S
EA2037S
E1126TE1327TSE1327S
E1126TS
E2035S
SSE3000S

E1027TSE1029S
SSE300E1032S
SSE360E1036S
E350
SSE380E1039GS
E398D
E1127TS
SSE300S
EA300S
E350AV
SSE360S
EA360SE1038GS
E1227S
E1132SE1035S
E350AV
E1026T
EA2030S
EA2037S
E1126TE1327TS
E1042S
E1126TS
E2035S
E2038GS
E1040D
SSE3000S
SSE3400S
E2050

We recommend
under 16” guidebars above
chainsaw models.

A017
E407
E407AV-21-

A016
E1045S
E1045GS
E1048SE1145SE1145GS

A013
E577
E757E

GUIDE BARSGUIDE BAR MATCH-22-

GUIDE BARSGUIDE BAR MATCH

Stihl
Guide Bar
Mount Type
Chain Saw
Model

A009
MS880

A010

A011

MS240
MS260
MS280C
MS361
MS360QS
MS390
MS440
MS460
MS440-VW
MS460-VW
MS441
MS261
MS271C-BE
MS291C-BE
MS362
MS660W

MS170
MS180C
MS210
MS210C
MS200
MS200T
MS230
MS230C
MS250CMS170-CMS192T
MS180C-BE
MS210C-BE
MS230C-BE
MS250C-BE
MS250C-B
MS192C-E
MS211C-BE
MS192TC-E
MS201
MS201C-E
MS241C-M
MS241C-MVW
MS181C-BE
MS201TC-E
MS231C-BE
MS251C-BE
MS150TC-E
MS150C-E-23-

GUIDE BARSGUIDE BAR MATCH

Stihl

-24-

GUIDE BARSGUIDE BAR MATCH

Stihl

-25-

GUIDE BARSGUIDE BAR MATCH

ZenoahGuide Bar
Mount Type
Chain Saw
Model

A002

A004

A006

A012

G2500T
G2500TEZ
G3100
G3200EZ
G2550T
G2500TEZ-F
G2550TEZ-F
G334EZ
G2501T
G2501TEZ-F
G2551T
G2551TEZ-F
G3201EZ
F3501EZ
G3401
G334
G3501

G620
G620H
G6200P
G6200HP

G2500T
G3100T
G3200EZ
G3500P
G3700
G4200
G2550T
G2500TEZ-F
G334EZ
G2000T
G2501T
G2551T
G3201EZ
F3501EZ
G3701
G4201
G3401
G334
G3501
G3711
G4201
G3401EZ
G334EZ
GZ3500TEZ
G3711EZ
G4211EZ
GZ3850EZ
GZ3900EZ
G4300EZ

G4500
G4500P
G5000
G5000P
G5000H
G5000HP
G4501P
G4501HP
G5001P
G5001HP
GZ3800EZ

We recommend
under 16” guidebars above
chainsaw models.

-26-

GUIDE BARSGUIDE BAR MATCH

Zenoah (Red Max)

-27-

GUIDE BARSGUIDE BAR MATCH

Zenoah (Red Max)

-28-

GUIDE BARSGUIDE BAR MATCH

Zenoah (Red Max)

-29-

GUIDE BARSGUIDE BAR MATCH

Husqvarna
Guide Bar
Mount Type
Chain Saw
Model

A012

A013

338XPT
339XP
340
345
346XP
346XPG
357XP
340e
345e
346XP-NE
346XPG-NE
435e
440e
445e
550XP
550XPG
560XP
560XPG
543XP
550XP MarkⅡ
560XP MarkⅡ
555

372XP
372XPG
288XP
395XPG
3120XP
365Special
285XPG
385XPG
576XP
576XPG
572XP
365 Special※Caution
It is impossible to use guide bars which part number are146NC2,
725SK2, 722ZK2,724ZK2,731HK0, 734ZK2, 745ZK2, 747SR2,
748SR2, 744SK2,744NC2,746SK2, 747SK2,748HK0 748SK2,749SK2, 750SK2
for Husqvarna 550 and 560 series.

-30-

GUIDE BARSGUIDE BAR MATCH

Husqvarna-31-

GUIDE BARSGUIDE BAR MATCH

Husqvarna-32-

REPLACEMENT SPROCKET NOSESHOW TO READ SPROCKET NOSE NUMBER

48 FV 8 4CODE NO.

NOSE TYPE

GAUGE
PITCH
0 : .050
1: 1/4
3 : .063
2 : .325
8 : .050 or
3 : 3/8LP.050-.058 4 : 3/8
5 : .404

PART NUMBER

PITCH

GAUGE

APPLICATION

48PV82
48PV3248FV84
48FV34
48PV35.325(12 tooth).325(12 tooth)
3/8(11 tooth)
3/8(11 tooth).404(10 tooth).050-.058.063.050-.058.063.058-.063

For FV,FK typebars with 4 rivets.
.325 pitch & .404
are 6 rivets.

48SR82
48SR32.325(11 tooth).325(11 tooth),050-.058.063

For SR, SK type bars
with 4 rivets.

48ZK02
48ZK82.325(10 tooth).325(10 tooth)

.050
.058

For ZR,ZK type bars
with 4 rivets.

48XK01
48XK03

1/4(13 tooth)
3/8LP(9 tooth)

.050
.050

For XK type bars
with 4 rivets-33-

ACCESSARIES & CHAIN
CHAINSAW NOSE BARS GREASESPROCKET NOSE BAR LUBRICANT
Tsumura Lubricant can be used for all types of
Sprocket Nose guide bars.
Specially, formulated high-grade lubricant
withstand high temperatures and pressure.
Penetrates deep and lubricates bearing and innerparts, reduces friction and wear.
Clean out grease hole and lubricate bearings hourly
when use and lubricate at the end of the dayʼs
cutting.

RESCUE CHAIN & Hi-Depth Chain
The Tsumura Rescue Chain & Hi-Depth chain has alarge, tungsten carbide tip welded to theentire surface of the cutter chain, which prolongs
tip life and makes it possible to regrind the tip.
The cutter chain is especially designed to maintainan optimal depth gauge even if a carbide tip iswelded to the cutter chain.
Rescue chain is developed for demolition work and
Hi-Depth chain is developed for hard tree cutting.

ALC cutting

Nail cutting

Car door cutting-34-

ACCESSARIES
Rescue Chain & Hi-Depth Chain Part Number (.325 Pitch)-35-

ACCESSARIES
Rescue Chain & Hi-Depth Chain Part Number (3/8 Pitch)-36-

HARVESTER BARHARVESTER BAR

We have 2 type of harvester bar which is BM type and BS type. Both of them are
replaceable sprocket nose type.
BM type sprocket nose tooth count is 11 tooth and BS type is 14 tooth.
BS type is much powerful and durability is also better than BM type.
Part Number

Spec

Oregon bar reference

859BM559cm .080 .404 70E

592RHFL104

863BM564cm .080 .404 74E

642RHFL104, 642RHFL114

873BM575cm .080 .404 85E

752RHFL104,752RHFL114

883BM590cm .080 .404 99E

902RHFL114

892BM5100cm .080 .404 109E

002RHFL114

863BS564cm .080 .404 74E

642SMRQ104,642SMRQ114

873BS575cm .080 .404 85E

752SMRQ104, 752SMRQ114-37-

SUEHIRO SEIKO CO., LTD
910 Takagi, Bessho
Miki, Hyogo-pref., 673-0435 Japan
Phone: +81 794 82 0765
Facsimile: + 81 794 82 6010
E-mail: supertip@suehiroseiko.jp
Website: http://www.suehiroseiko.jp
Ver.2023.11.15