Sumitomo General Catalog 2025-2026

Grooving Tools GND

For External Turning (For Small Lathes)

Traverse Cutting / Proling (Cut-off)

Grooving / Cut-off (Traverse Cutting)

Shank Size (H x W) .375” x .375” .500” x .500” .625” x .625” GNDL Straight Type

GNDM Straight Type

GNDM-J Straight Type

GNDL-J Straight Type

Internal Coolant Supply

Internal Coolant Supply

Shank Size (H x W) .500” x .500” .625” x .625”

Shank Size (H x W) .625” x .625”

Shank Size (H x W) .625” x .625”

10 × 10mm 12 × 12mm 16 × 16mm 20 × 12mm

12 × 12mm 16 × 16mm 20 × 12mm

16 × 16mm 20 × 12mm

16 × 16mm 20 × 12mm F23

F24

F23

F24

Seat Size 1.25 1.5 2.0 3.0 4.0 5.0 6.0 7.0 8.0 MG ML GG GL GF CG CF RG RN GA Applicable Chipbreaker

Seat Size 1.25 1.5 2.0 3.0 4.0 5.0 6.0 7.0 8.0 Applicable Chipbreaker MG ML GG GL GF CG CF RG RN GA

Seat Size 1.25 1.5 2.0 3.0 4.0 5.0 6.0 7.0 8.0 Applicable Chipbreaker MG ML GG GL GF CG CF RG RN GA

Seat Size 1.25 1.5 2.0 3.0 4.0 5.0 6.0 7.0 8.0 Applicable Chipbreaker MG ML GG GL GF CG CF RG RN GA

F

For External Turning For Small Lathes Series Overview

MG : Multi-functional / General-purpose ML : Multi-functional / Low-feed GG : Grooving / General-purpose GL : Grooving / Low-feed

GF : Grooving / Low cutting force GA : Non-ferrous Metal / General-purpose

CG : Cut-off / General-purpose

CF : Cut-off / Low cutting force

RG : Proling / General-purpose RN : Facing / Necking / General-purpose

Shank Size (Inch)

Applicable Chipbreakers

Seat Size

Maximum Groove Depth (Inch)

Ref. Page

Series

MG ML GG GL GF CG CF RG RN GA

.197 .394 .591 .787 1.000 1.181

Width (B)

1.251.52 3 4 5 6 7 8

Height (H)

G G G G G G G G G G G G G G G G G G

.375 .375 .375

1.251.5

F23 F23 F23 F23 F23 F24 F23 F24 F23 F23 F23 F24 F23 F24 F23 F24 F23 F24

S S S S S S G G S S G G S S

G G G G G G G G G G G G G G

G G G G G G G G G G G G G G

G G G G G G G G G G G G G G

G G G G G G G G G G G G G G

G S G G S S G G G G S S S S

G G G G G G G G G G G G G G

GNDL

2

.375 .375

S

G

3

GNDL GNDL GNDL-J GNDL GNDL-J GNDM GNDL GNDM GNDM-J GNDL GNDL-J GNDM GNDM-J GNDL GNDL-J

1.251.5

.500 .500 .500 .500 .500

2 2

.500 .500

Internal Coolant Supply

S S

G G

3 3

Internal Coolant Supply

.375

1.5 1.5

.500

.472 .472

2 2 2 2

Internal Coolant Supply

.625 .625

.625 .625

Internal Coolant Supply

G G S S

G G G G

.472 .472

3 3 3 3

Internal Coolant Supply

.625 .625

Internal Coolant Supply

Shank Size ( mm )

Maximum Groove Depth ( mm )

Applicable Chipbreakers

Seat Size

Ref. Page

Series

MG ML GG GL GF CG CF RG RN GA

5

10

15

20

25

30

1.251.52 3 4 5 6 7 8

Height (H)

Width (B)

G G G G G G G G G G G G G G G G G G G G G G G G G G G

10 10 10

1.251.5

F23 F23 F23 F23 F23 F24 F23 F24 F23 F23 F23 F23 F24 F23 F24 F23 F24 F23 F24 F23 F24 F23 F24 F23 F24 F23 F24

S S S S S S G G S S G G S S G G S S G G S S

G G G G G G G G G G G G G G G G G G G G G G

G G G G G G G G G G G G G G G G G G G G G G

G G G G G G G G G G G G G G G G G G G G G G

G G G G G G G G G G G G G G G G G G G G G G

G S G G S S G G G G S S S S G G G G S S S S

G G G G G G G G G G G G G G G G G G G G G G

GNDL

2

10 10

S

G

3

12 12.5 12.5 12.5 12.5

GNDL GNDL GNDL-J GNDL GNDL-J GNDM GNDL GNDM GNDM GNDM-J GNDL GNDL-J GNDM GNDM-J GNDL GNDL-J GNDM GNDM-J GNDL GNDL-J GNDM GNDM-J GNDL GNDL-J

1.5

1.25

2 2

12 12

Internal Coolant Supply

S S

G G

3 3

Internal Coolant Supply

8

1.25 1.25

12.5

1.5 1.5

10

12 12

2 2 2 2

Internal Coolant Supply

16 16

16 16

Internal Coolant Supply

G G S S

G G G G

12 12

3 3 3 3

Internal Coolant Supply

16 16

Internal Coolant Supply

17 17

2 2 2 2

Internal Coolant Supply

21 21

Internal Coolant Supply

20

12

G G S S

G G G G

17 17

3 3 3 3

Internal Coolant Supply

21 21

Internal Coolant Supply

G : Best S : Suitable

: In Stock

F9

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