Sumitomo General Catalog 2025-2026

External General-Purpose GND for Small Lathes (Grooving, Turning, Profiling) Grooving Tools GNDM-JX / GNDL-JX - For Small Lathes

Zero Offset * For traverse cutting (groove expansion), use a multifunctional insert for profiling. Fig 1 Fig 2

External

For External Grooving (for Small Lathes) GNDM

CDX

CDX

LF

LF

LH

LH

*

F

Figure shows right hand (R) tool.

Holder

Parts Dimensions (inch/ mm )

Max. Groove Depth

Cutting Edge Distance

Cutting Edge Height

Stock

Cap Screw Wrench

Overall Length

Seat Size

Height Width

Head Off Set

Applicable Insert

Cat. No.

Fig

R L

N m

H B LF WF HF LH WF2 CW CDX GNDM R/L 101.5JX-038 ● ● .625 .625 4.75 .625 – 1.024 0 1.5 .375 GCMN150005-GF 1

GNDM R/L 102JX-047 GNDM R/L 103JX-047

● ● .625 .625 4.75 .625 – 1.181 0 2 .472 GC □ □ 20 ○○ - □□ 1 ● ● .625 .625 4.75 .625 – 1.181 0 3 .472 GC □ □ 3 ○○○ - □□ 1

BX0515 4.0 LH040

GNDM R/L 1616JX-1.2508  GNDM R/L 1616JX-1.510  GNDM R/L 1616JX-212  GNDM R/L 1616JX-312  GNDM R/L 2012JX-217 GNDM R/L 2012JX-317

8.0 GCMN125005-GF 1 10.0 GCMN150005-GF 1 12.0 GC □ □ 20 ○○ - □□ 1 12.0 GC □ □ 3 ○○○ - □□ 1 17.0 GC □ □ 20 ○○ - □□ 2

16 16 120 16 16 26 0 16 16 120 16 16 26 0 16 16 120 16 16 30 0 16 16 120 16 16 30 0 20 12 120 12 20 26.5 0 20 12 120 12 20 26.5 0

1.25

1.5

BX0515 4.0 LH040

2 3 2 3

BFTX0414 3.0 LT15-10

17.0 GC □ □ 3 ○○○ - □□ 2 Combine the insert with a holder such that the Seat Size matches. Refer to page F21 & F22 for applicable inserts

External Grooving / Cut-Off GND for Small Lathes

Fig 1

Fig 2

External Grooving & Cut-Off Clamp-on for Small Lathes (Cut-Off)

Zero Offset

CDX

CDX

External

Fig 1

Fig 2

Fig 3

For External Grooving (for Small Lathes) GNDL

LF

LF CDX

CDX

CDX

LH

LH

LF

LF

LF

LH

LH

LH

LH2

LH2

Figure shows right hand (R) tool.

Holder

Parts Dimensions (inch/ mm )

Figure shows right hand (R) tool.

Cutting Edge Distance

Cutting Edge Height

Max. Groove Depth

Flat Screw/ Cap Screw

Overall Length

Off Set

Seat Size

Wrench

Stock Height Width

Step Head Head

Cat. No.

Applicable InsertFig

LT15-10

BFTX0412N

R L H B LF WF HF HBH LH LH2 WF2 CW CDX

N m

LH040

BX0515

GNDL R/L 061.25JX-038 ● ● .375 .375 4.75 .375 .375 .079 .709 .720 0 1.25 .375 GCMN125005-GF 1 GNDL R/L 061.5JX-038 ● ● .375 .375 4.75 .375 .375 .079 .709 .720 0 1.5 .375 GCMN150005-GF 1 GNDL R/L 062JX-038 ● ● .375 .375 4.75 .375 .375 .079 .866 .878 0 2 .375 GC □□ 20 ○○ - □□ 1 GNDL R/L 063JX-038 ● ● .375 .375 4.75 .375 .375 .079 .866 .878 0 3 .375 GC □□ 3 ○○○ - □□ 1 GNDL R/L 081.25JX-047 ● ● .500 .500 4.75 .500 .500 .079 .748 .760 0 1.25 .472 GCMN125005-GF 1 GNDL R/L 081.5JX-047 ● ● .500 .500 4.75 .500 .500 .079 .748 .760 0 1.5 .472 GCMN150005-GF 1 GNDL R/L 082JX-050 ● ● .500 .500 4.75 .500 .500 .079 .866 .878 0 2 .500 GC □□ 20 ○○ - □□ 1 GNDL R/L 083JX-050 ● ● .500 .500 4.75 .500 .500 .079 .866 .878 0 3 .500 GC □□ 3 ○○○ - □□ 1 GNDL R/L 101.5JX-050 ● ● .625 .625 4.75 .625 .625 – 1.102 – 0 1.5 .500 GCMN150005-GF 2 ● ● .625 .625 4.75 .625 .625 – 1.26 – 0 2 .625 GC □□ 20 ○○ - □□ 2 ● ● .625 .625 4.75 .625 .625 – 1.26 – 0 3 .625 GC □□ 3 ○○○ - □□ 2 GNDL R/L 1010JX-1.2510  10 10 120 10 10 2.0 18 18.3 0 1.25 10.0 GCMN125005-GF 1 GNDL R/L 102JX-063 GNDL R/L 103JX-063 GNDL R/L 1010JX-1.510  10 10 120 10 10 2.0 18 18.3 0 1.5 10.0 GCMN150005-GF 1 GNDL R/L 1010JX-210  10 10 120 10 10 2.0 22 22.3 0 2 10.0 GC □□ 20 ○○ - □□ 1 GNDL R/L 1010JX-310  10 10 120 10 10 2.0 22 22.3 0 3 10.0 GC □□ 3 ○○○ - □□ 1 GNDL R/L 1212JX-1.2512  12 12 120 12 12 2.0 19 19.3 0 1.25 12.0 GCMN125005-GF 1 GNDL R/L 1212JX-1.512  12 12 120 12 12 2.0 19 19.3 0 1.5 12.0 GCMN150005-GF 1 GNDL R/L 1212JX-212.5  12 12 120 12 12 2.0 22 22.3 0 2 12.5 GC □□ 20 ○○ - □□ 1 GNDL R/L 1212JX-312.5  12 12 120 12 12 2.0 22 22.3 0 3 12.5 GC □□ 3 ○○○ - □□ 1 GNDL R/L 1616JX-1.2512.5  16 16 120 16 16 – 28 – 0 1.25 12.5 GCMN125005-GF 2

BFTX0412N 3.0 LT15-10

BFTX0412N 3.0 LT15-10

BX0515 4.0 LH040

BFTX0412N 3.0 LT15-10

BFTX0412N 3.0 LT15-10

GNDL R/L 1616JX-1.512.5  16 16 120 16 16 – 28 –

0 1.5 12.5 GCMN150005-GF 2

BX0515 4.0 LH040

GNDL R/L 1616JX-216 GNDL R/L 1616JX-316 GNDL R/L 2012JX-221 GNDL R/L 2012JX-321

16.0 GC □□ 20 ○○ - □□ 2 16.0 GC □□ 3 ○○○ - □□ 2 21.0 GC □□ 20 ○○ - □□ 3

 16 16 120 16 16  16 16 120 16 16  20 12 120 12 20  20 12 120 12 20

– – – –

32 32

– – – –

0 0 0 0

2 3 2 3

30.5 30.5

BFTX0414 3.0 LT15-10

21.0 GC □□ 3 ○○○ - □□ 3 Combine the insert with a holder such that the Seat Size matches. Refer to page F21 & F22 for applicable inserts

F23

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