Sumitomo General Catalog 2025-2026

Small Diameter Cut-Off Tool Holders SCT

For Cut-off (Carbide Holder/Tool Block Type)

Cut-off

SCT Small Diameter Cut-off

Fig 1

Fig 2

LF

LF

LH

LH

18

Figure shows right hand (R) tool.

F

Holder (Right Handed)

Parts  Dimensions (inch/ mm )

Overall Length

Cutting Edge Distance

Cutting Edge Height

Flat Screw Wrench

Head

Height Width

Applicable Insert Fig

Cat. No.

H B LF

WF

HF

LH

SCT R08 SCT R10 SCT R12

● ● ●

.500 .500 6.0 .625 .625 6.0 .750 .750 6.0 10 10 120 12 12 120 16 16 120 10 10 120 12 12 120 16 16 120

.500 .625 .750

.500 .625 .750

.591 .591 .591

1 1 1 1 1 1 2 1 1

CT R05 ○○○○ (-NB) CT R12 ○○○○ (-NB) CT R05 ○○○○ (-NB) CT R12 ○○○○ (-NB)

BFTX0410T8L TRX08

SCT R1010 SCT R1212 SCT R1616

10 12 16 10 12 16

10 12 16 10 12 16

15 15 15 18 18 18

     

BFTX0410T8L TRX08

SCT R1010-16 SCT R1212-16 SCT R1616-16

CT R16 ○○○○ (-NB)

BFTX0410T8L TRX08

Holder (Left Handed)

Parts  Dimensions (inch/ mm )

Overall Length

Cutting Edge Distance

Cutting Edge Height

Flat Screw Wrench

Head

Height Width

Applicable Insert Fig

Cat. No.

H B LF

WF

HF

LH

SCT L08 SCT L10 SCT L12

● ● ●

.500 .500 6.0 .625 .625 6.0 .750 .750 6.0 10 10 120 12 12 120 16 16 120 10 10 120 12 12 120 16 16 120

.500 .625 .750

.500 .625 .750

.591 .591 .591

1 1 1 1 1 1 2 1 1

CT L05 ○○○○ (-NB) CT L12 ○○○○ (-NB) CT L05 ○○○○ (-NB) CT L12 ○○○○ (-NB)

BFTX0410T8R TRX08

SCT L1010 SCT L1212 SCT L1616

10 12 16 10 12 16

10 12 16 10 12 16

15 15 15 18 18 18

     

BFTX0410T8R TRX08

SCT L1010-16 SCT L1212-16 SCT L1616-16

CT L16 ○○○○ (-NB)

BFTX0410T8R TRX08

● Design Features

Features

New screw with wrench hole at both ends makes it possible to change inserts from the back

New screw clamping system makes it possible to change comers by simply loosening the screw

● Simple Indexable Inserts New clamping system makes it possible to change corners simply by loosening the screw from the back ● High quality surface finish Excellent chip removal with good surface finish even at the center of the part material end face. ● Long, stable tool life with PVD-coated grades: AC1030U and AC530U

Sharp cutting edge of the vertically mounted 2-corner insert with arc-shaped breaker minimizes cutting force with good chip evacuation

Shank Size □ 10/12/16mm

New PVD-coated grade AC1030U/AC530U provides longer and stable tool life

Maximum Cut-off Dia. ø5/ø12/ø16mm Width of Cut 0.5/1.0/1.5/2.0mm Nose Radius 0.05/0mm Front Cutting Edge Angle: 0°/20°

Insert tightening direction indicator

SCT Holder

CT Inserts

● Cutting Force

● Surface Finish

Performance

Small Pip

Large Pip

300

Feed Force Principal Force

200

100

0

SCT

Competitor's Product

SCT

Competitor's Product

F66

Part Material: 1045 Carbon Steel ( ø10mm ), Width of Cut: 1.5mm v c = 200 SFM, f = .0024 IPR Wet

Part Material: 430 Stainless Steel( ø8mm ), Width of Cut: 1.0mm (With Feed Direction) v c = 150 SFM, f = .0008 IPR

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