Sumitomo General Catalog 2025-2026

External Holders DWLN-J / DWLN / MWLN

Fig 1

SEC-D series Holder - General Turning and Facing Internal Coolant Supply Double Clamp

Internal Coolant

95˚

95˚

95˚

DWLN-J External Turning and Facing

LH

Fig 1

-6˚

LF

Fig 1

-6˚

95˚

95˚

LH

Rc1/8

Rc1/8

-6˚

LH

LF

-6˚

LF

Figure shows right-handed (R) tool.

-6˚

Holder

Parts 

-6˚

Dimensions ( mm )

Shim Screw

Applicable Insert

Clamp Plate

Cap Screw

Wrench for Shim

Top Hex Wrench

Bottom Hex Wrench

C

Cutting Edge Height

Stock Height Width

Spring O-ring Shim

Plug

Overall Length

Cutting Edge

Head

Rc1/8

Rc1/8

Cat. No.

Fig

Ref. Page

Rc1/8

Rc1/8

R L

Cat. No.

Figure shows right-handed (R) tool.

H BLFWFHF LH DWLN R/L2020K08-J   20 20 125 25 20 32 DWLN R/L2525K08-J   25 25 125 32 25 32 *Wrench for shim is sold separately from the main body.

N m

(For Torx hole) (For Hexagonal hole) (For Hexagonal hole)

Figure shows right-handed (R) tool.

WN □□ 43 □ B67 1 JC R/L-01 CP-M5-20-1 5.0 CSP12J SS060 WNS0804 BFTX0409N TRX15(*)LH040LH025XP02

Fig 1

D Holder - General Turning and Facing Double Clamp

95˚

95˚

95˚

LF

DWLN External Turning and Facing

–6˚

–6˚

Fig 1

LH

95˚

LF

–6˚

Figure shows right-hand (R) tool.

C

–6˚

Holder

Parts 

LH

Dimensions inch/ ( mm )

Shim Screw

Clamp Screw

Clamp Set

Shim Wrench

Clamp Wrench

Pin Wrench

Cutting Edge Height

Stock Height Width Overall Length

Cutting Edge

Shim

Clamp

Spring

Head Applicable Insert

Cat. No.

Fig

Ref. Page

R L

Cat. No.

N m

H B LFWFHFLH DWLN R/L 123BN l l 0.750 0.750 4.500 1.000 0.750 1.000 DWLN R/L 163DN l l 1.000 1.000 6.000 1.250 1.000 1.000 DWLN R/L 124BN l l 0.750 0.750 4.500 1.000 0.750 1.250 DWLN R/L 164DN l l 1.000 1.000 6.000 1.250 1.000 1.250 DWLN R/L 204DN l l 1.250 1.250 6.000 1.500 1.250 1.250 DWLN R/L 244EN l l 1.500 1.500 7.000 2.000 1.500 1.250 DWLN R/L 124BAN*   0.750 0.750 4.500 1.000 0.750 1.250 DWLN R/L 164DAN*   1.000 1.000 6.000 1.250 1.000 1.250 DWLN R/L 204DAN*   1.250 1.250 6.000 1.500 1.250 1.250 DWLN R/L 244EAN*   1.500 1.500 7.000 2.000 1.500 1.250 DWLN R/L 2020K08   20 20 125 25 20 32 DWLN R/L 2525M08   25 25 150 32 25 32

D

Figure shows right-hand (R) tool.

(For Torx Holes) (For Hex Socket) (For Hex Socket)

1 1 1 1 1 1 1 1 1 1 1 1

WN □□ 33 □ B65

5.0 CL-2708 CLB-1695 IWSN-322 ST-1764 SP-4294 TRX15(*)

LH020

WN □□ 43 □

R

— 5.0 CL-2712 CLB-1696 IWSN433 ST-1766 SP-4295 SP-4295 LH040

B67

WN □□ 43 □

— 5.0 CL-2712 CLB-1696 IWSN433 ST-1766 SP-4295 SP-4295 LH040

S

WN □□ 43 □

SCP-2 5.0

WNS0804 BFTX0409N –

TRX15(*) LH040 LH025

Wrench for shim is sold separately from the main body.

C3

Clamp Set Parts

When using handed breaker inserts for facing, the holder and insert are opposite handed. *Coolant Through (see page F29 for example and list of coolant-through parts)

T

M Holder - General Turning , Facing, Profiling and Undercutting Clamp-on + Pin Lock

95˚

Fig 1

Fig 2

95˚

MWLN External / Facing / Proling / Undercutting

V

–6˚

LF

LH

LF

LH

–6˚

W

Holder

Parts 

Figure shows right-hand (R) tool.

Dimensions (inch/ mm )

Clamp Screw

Lock Pin

Applicable Insert

Bolt Wrench

Pin Wrench

Cutting Edge Height

Stock Height Width Overall Length

Cutting Edge

Nut Ring

Shim

Wedge Clamp

Head

Cat. No.

Fig

Ref. Page

R L

Cat. No.

N m

H B LFWFHFLH MWLN R/L 123B l l 0.750 0.750 4.500 1.000 1.000 0.750 MWLN R/L 163D l l 1.000 1.000 5.000 1.250 1.000 1.000 MWLN R/L 124B l l 0.750 0.750 4.500 1.000 0.750 1.070 MWLN R/L 164D l l 1.000 1.000 6.000 1.250 1.000 1.070 MWLN R/L 204D l l 1.250 1.250 6.000 1.500 1.250 1.070 MWLN R/L 244E l l 1.500 1.500 7.000 2.000 1.500 1.070 MWLN R/L 2020K08   20 20 125 25 20 32 MWLN R/L 2525M08   25 25 150 32 25 32 MWLN R/L 3225P08   32 25 170 32 32 32

(For Hex Socket) (For Hex Socket)

1 1 1 1 1 1 2 2 2

WN □□ 33 □ B65

CL6 NL34L IWSN322 XNS-36

LH020

3.0

— —

WN □□ 43 □

CL20 NL46 IWSN433 XNS-48

LH1/8 LH3/32

B67

MP416 MP420 MP420

CPM43S CPM43N CPM43N

WN □□ 43 □

SWW433 BHA0625 4.5

MWW40

ER05 LH040 LH030

l = USA Stocked Item  = World Wide Warehouse Item

When using handed breaker inserts for facing, the holder and insert are opposite handed.

C32

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