Sumitomo General Catalog 2025-2026

CBN - SUMIBORON Inserts & Special Holders for High Efficiency Machining

63˚

DDNN External / Proling

Fig 1

63˚

LH

Insert

L51

LF

-10˚

(1) 2NC-DNGA434 (2) 2NC-DNGA435 (3) 2NC-DNGA436

(4) 4NC-DNGA434 (5) 4NC-DNGA435 (6) 4NC-DNGA436

L

Figure shows right-hand (R) tool.

Holder

Parts 

Dimensions (mm)

Shim Screw

Overall Length

Cutting Edge

Cutting Edge Height

Wrench for Shims

Upper Surface Wrench

Lower Surface Wrench

Height Width

Head

Clamp Set

Shim

Cat. No.

Stock

Applicable Insert Fig

H BLFWF HF LH

N m

TRX15 (*)

DDNN N 2525M15-R24  25 25 150 13 25 40 ○ NC-DNGA43 ○

1 SCP-2

5.0 DNS1504-R24 BFTX0409N

LH040 LH025

*Dedicated tool holder for .063"/.079"/.094" nose radius inserts. Other sizes cannot be used. *Wrench for shim is sold separately from the main body.

91˚

DTGN External Turning

Fig 1

91˚

L71 Insert

-5˚

LH

LF

-5˚

(1) 3NC-TNGA334 (2) 3NC-TNGA335 (3) 3NC-TNGA336

(4) 6NC-TNGA334 (5) 6NC-TNGA335 (6) 6NC-TNGA336

Figure shows right-hand (R) tool.

Holder

Parts 

Dimensions (mm)

Shim Screw

Overall Length

Cutting Edge

Cutting Edge Height

Wrench for Shims

Upper Surface Wrench

Lower Surface Wrench

Stock Height Width

Head

Clamp Set

Shim

Applicable Insert

Cat. No.

Fig

RL H BLFWF HF LH

N m

DTGN R/L 2525M16-R24   25 25 150 32 25 32

1 1

TRX10 (*)

○NC-TNGA33○

DTGN R/L 3225P16-R24  DTGN R/L 3232P16-R24 

32 25 170 32 32 32 32 32 170 40 32 32

SCP-1

5.0 TNS1604-R24 BFTX0307N

LH040 LH025

1 *Dedicated tool holder for .063"/.079"/.094" nose radius inserts. Other sizes cannot be used. *Wrench for shim is sold separately from the main body.

L112

N m Recommended Tightening Torque (N·m)

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