Molding, special molding and processing range* Please consult us for information on processing not on the list.

1. Applicable Range
These specifications apply to special molding products with a short lead time.
The grade used shall as a rule be TK8/NF15.
 hese specifications shall apply in principle and negotiations shall be used to handle singleT
items depending on product configuration.

2. Basic Specifications-1. Outside diameter (MAX. φ59)
Configuration

Tolerance

Solid carbide type+0.9+0.4+1.0
φD+0.6
φD

Solid-head carbide type

* φD is the finishing diameter-2. Length (MAX. 330 mm)
Basic tolerance
LengthMore than Less than More than Less than More than Less than More than Less than―5050+0.8+0.3Tolerance

100100+1.3+0.3150+1.8+0.3150―+2.3+0.3*1 This applies to both total length and the length of each step, but depending on directionof the grinding process, use the same tolerance width but anegativetolerance value.
*Use the shank standard for a cutting edge with a broad configuration.
-3. Flute processing (Flutelength MAX. 250 mm)
LengthMore than Less than More than Less than More than Less than―Tolerance

100100   0−1.0150  0−1.5150―  0−2.0*2 If there are instructions for remaining flute length, use the same tolerance width and apositive tolerance value.
*3 Unless otherwise specified,whetstone radius for groove grinding is R 37.5. If this value
is smaller than the R value used by the user, reduce the flute length to prevent sinteredsurface from remaining.
*4 You can select a flute inner angle R of R0, R1.0, R2.0 and R3.0. Use R0 unless otherwisespecified.
*5 Helical flute processing can also be performed. Total length is max. 220 mm, unlessotherwise specified, use R50.
Center height and center thickness
Tolerance+1.0+0.5* Apply this to each specified dimension. If sinter is ordered, select -0.5
from the upper and lower limit in the table on the left.

Molding, special molding and processing range* Please consult us for information on processing not on the list.
-4. Oil hole processing (φ0.5 -)-5. Step processing
 o not perform step processing if the height difference is less than 1 mm (or if theDdifference in external diameter is less than 2 mm).
-6. Center enter processing should be used for locations other than V-cut portions that have
Cundergone brazing. Center point or center hole should be determined by the user. Use
center hole processing for an end face if not otherwise specified.
-7. Runout
Configuration

Allowable value

Solid carbide type

NHM standard

Solid-head carbide type

0.3 or less

* NHM standard: When both centers aresupported, use a minimum grinding
allowance of -0.2 as the allowable value.

-8. Other details
 ther processing is also possible, but if many complex processes are required, a separateOmeeting to discuss the delivery schedule may be necessary.

Molding, special molding and center specifications
1. Applicable Range hese specifications apply to center point and center hole of special molding products forT
quick delivery.
 hese specifications shall apply in principle and negotiations shall be used to handle singleT
items depending on product configuration.

2. Center point (Figure - 1)
A selection should be made from the following table based on end face diameter.
End face diameterφd1- φ5 or less―More than φ5 - φ10 or less3

More than φ10 - φ20 or less4

More than φ20 -5* When the end-face diameter is φ5 or less, thecenter point becomes a cone with the samediameter as the end-face diameter.

3. Center hole (Figure - 2)
A selection should be made from the following table based on end face diameter.
End face diameter

φd2

φd3

- φ5 or less

0.7―

More than φ5 - φ10 or less

1.0

2

More than φ10 - φ15 or less

1.53

More than φ15 - φ20 or less

24

More than φ20 -2.55[Figure - 1]

[Figure - 2]