Sumitomo General Catalog 2025-2026

Grooving Tools CKB Toolholders

Clamp-on for Internal Diameter Narrow Grooving

Internal

Small Diameter Internal Grooving CKB

Fig 1

L1

CDX

20

F

Refer to the insert table for E3 and CDX values.

Parts 

Holder

Dimensions (mm)

Cutting Edge Distance

Cutting Edge Height

Clamp Double Screw Wrench

Height

Width Overall Length

Cat. No.

Fig

H

B

L1

WF

HF

CKB R1010-16 CKB R1212-16 CKB R1616-16 CKB R2020-16 CKB R2525-16

● ● ● ●

10 12 16 20 25

10 12 16 20 25

100 125 125 125 150

10 12 16 20 25

10 12 16 20 25

1 1 1 1 1

CKBW16 WB4-8 LH020

Refer to the insert table for E3 and CDX values.

Insert (

Coated Carbide) 

Dimensions (mm)

Cutting Edge Distance

Cutting Edge Distance

Maximum Groove Depth (mm) Fig

Min. Bore Diameter

Width of Cut

Nose Radius

Overall Length

Min. Bore Diameter (DMIN)

Fig 1

CDX

Cat. No.

DMIN CW WF3 E3 RE L CDX

CW

L

KBMG R0411-05 KBMG R0411-10 KBMG R0511-05 KBMG R0511-10

● 4.0 1.00 4.90 1.1 0.05 28.5 11 1 ● 4.0 2.00 4.90 1.1 0.10 28.5 11 1 ● 5.0 1.00 5.10 1.3 0.05 28.5 11 1 ● 5.0 2.00 5.10 1.3 0.10 28.5 11 1

Close-up of Cutting Edge

55°

R0.25

CW

2-RE

l : USA Stocked Item « : Worldwide Warehouse Item p : USA Limited Availability Item

F50

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