Sumitomo General Catalog 2025-2026

T-REX Tool Holders S-DTR55C

Internal Profiling Double Clamp

Steel

93˚

S-DTR55C Internal Profiling

DMIN Min. Bore Dia.

Fig 1

DCON

LHD

H

GAMF

LF

-5°

E

Holder

Parts

Dimensions (inch / mm )

Shim Screw

Cap Screw

Shim Wrench

Cutting Edge Distance

Cutting Edge Height Fig

Shim

Stock Min. Bore Dia.

Clamp Spring

Wrench

C

Overall Length

Rake Angle

Diameter Height

Head

Offset

Cat. No.

R L

N m

DMIN DCON H LF WF LHD GAMF E1 HF A20DTR55C R3 / L3 pp 1.75 1.25 1.25 10.0 .875 1.575 -12° .309 — 1

(For Hex Socket) (For Torx Holes)

D

3.5 to 4.5

A24DTR55C R3 / L3 S32S-DTR55CR-17  S40T-DTR55CR-17 

2.00 1.50 1.50 12.0 1.00 1.575 -10° .309 — 1 44 32 30 250 22 42 -12° 7.0 15.0 1 50 40 37 300 25 42 -10° 6.2 18.5 1

TRW5505 BFTX0307N TSW040 TRX10 (*)

TRCP3 SSP420 BX0520

* Item is sold separately. TR55C Type:

R

Insert (

Coated Carbide /

Cermet)

Dimensions (Inch / mm )

S

Nose Radius RE

Appearance

Cat. No.

Fig

TRM551704-FL TRM551708-FL

● ● ● ●

▲ 1 ▲ 1

.0157" / 0.4 .0315" / 0.8

T

Fig 1

RE

FL

TRM551704-LU .0157" / 0.4 ● ● ● ● ● TRM551708-LU .0315" / 0.8 ● ● ● ● ● TRM551712-LU .0472" / 1.2 ● ● ● ● ● TRM551704-SU .0157" / 0.4 ● ● ●

▲ 1 ▲ 1 ▲ 1

V

LU

● ● ● ● ▲ 1 ● ● ● ● ▲ 1 ● ● ● ● ▲ 1

W

TRM551708-SU

.0315 / 0.8 ● ● ●

TRM551712-SU .0472" / 1.2 ● ● ● TRM551704-GU .0157 / 0.4 ● ● ● ● ●

SU

1

TRM551708-GU .0315 / 0.8 ● ● ● ● ● ● ● ● ●

1

TRM551712-GU .0472" / 1.2 ● ● ● ● ●

GU

● ● ●

1

• USA Stocked Item  Worldwide Warehouse Item p USA Limited Availability Item

N m Recommended tightening torque (N·m)

E27

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