Sumitomo General Catalog 2025-2026

Boring Bars S-SSKP / C-SSKP

Internal General Screw-on

Steel

75°

Through Boring S-SSKP

DMIN Min. Bore Dia.

Fig 1

DCON

75˚

H

GAMF

LF

-5°

E

LHD

Figure shows right-hand (R) tool.

Holder

Parts

Dimensions ( mm )

Applicable Insert

Stock Min. Bore Dia.

Flat Screw Wrench

Cutting Edge Distance

Overall Length

Rake Angle

Diameter Height

Head

C

Cat. No.

Fig

R L

Cat. No.

N m

DMIN DCON H LF WF LHD GAMF

(For Torx Holes)

S12M-SSKP R/L0903-16   16

1 1 1 1

12 11 150 8.0 9.0 16 15 200 10.0 6.8 20 18 250 12.5 8.5 25 22 300 14.0 5.0

-6° -4° -2°

S16R-SSKP R/L0903-20 S20S-SSKP R/L0903-25 S25T-SSKP R/L0903-28

20 25 28

     

SP □□ 32 □ B96

BFTX0307A 2.0

Steel

TRX10

D

Right-handed (R) tool holders are compatible with left-handed (L) or neutral (N) inserts. Left-handed (L) tool holders are compatible with right-handed (R) or neutral (N) inserts.

R

Internal General Screw-on

Carbide Carbide Long

75°

Through Boring C-SSKP

DMIN Min. Bore Dia.

S

Fig 1

DCON

75˚

H

T

GAMF

LF

-5°

LHD

V

Holder

Parts

Dimensions ( mm )

Applicable Insert

Flat Screw Wrench

Cutting Edge Distance

Min. Bore Dia.

W

Overall Length

Rake Angle

Head

Diameter Height

Cat. No.

Fig

Cat. No.

N m

R DMIN DCON H LF WF LHD GAMF

(For Torx Holes)

Carbide Standard Carbide Long

C12M-SSKP R0903-16  16 C12R-SSKP R0903-16  16 C16S-SSKP R0903-20  20

12 11 150 12 11 200

8 25 8 25

-6° -6° -4°

1 1 1

SP □□ 32 □

B96

BFTX0307A 2.0

TRX10

16 15 250 10 30

Right-handed (R) tool holders are compatible with left-handed (L) or neutral (N) inserts.

 Worldwide Warehouse Item

Applicable Inserts S-SSKP / C-SSKP

Name of Chipbreaker/ CBN/PCD

EGU

1st Recommended Insert ● Refer as well to the Insert Selection Guide (page A10).

Photo Grade

● Some combinations need to be made to order or cannot be manufactured.

AC8025P

P (Steel)

M (Stainless Steel)

N (Non-ferrous)

Cutting Range

Finishing Medium Cutting Finishing Medium Cutting

Process

PCD

ELB

ELB

EFB

ELU

General Cutting

T1500Z

AC8025P

AC6030M

AC6030M

DA1000

PCD

R/L

High Precision Recommended Cutting Conditions

— — —

T1500Z

DA1000

A10

A14

A22

N m Recommended Tightening Torque (N·m)

E44

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