Sumitomo General Catalog 2025-2026

External Holders MCRN / PCBN

M Style Holder - General Turning Clamp-on + Pin Lock

95˚

95˚

External Turning MCRN

Fig 1

75º

LH

-6º

Figure shows right-hand (R) tool.

LF

-6º

C

Holder

Parts 

Dimensions (inch)

Clamp Screw

Lock Pin

Clamp Wrench

Shim Wrench

Applicable Insert

Cutting Edge Height

Clamp

Stock

Shim

Overall Length

Cutting Edge

Height Width

Head

Cat. No.

Fig

Ref. Page

R L

Cat. No.

N m

H B LFWFHFLH

(For Hex Socket)

(For Hex Socket)

MCRN R/L 124B • • 0.750 0.750 4.500 0.878 0.750 1.180 MCRN R/L 164D • • 1.000 1.000 6.000 1.128 1.000 1.180 MCRN R/L 204D • • 1.250 1.250 6.000 1.318 1.250 1.180 MCRN R/L 165D • • 1.000 1.000 6.000 1.101 1.000 1.101 MCRN R/L 205D • • 1.250 1.250 6.000 1.351 1.250 1.351 MCRN R/L 206D • • 1.250 1.250 6.000 1.318 1.250 1.318 MCRN R/L 246D • • 1.500 1.500 6.000 1.818 1.500 1.818

1 3.0 ICSN432 NL46 LH1/8 LH3/32 CL20 XNS48 1

CN □□ 43 □ B22

1

1 3.5 ICSN533 NL58 LH040 LH1/8 CL12 XNS510 1 3.5 ICSN633 NL68 LH040 LH9/64 CL12 XNS510 1

CN □□ 54 □ B26

CN □□ 64 □ B28

1

70 Style Holder - General Turning Lever Lock

C

75˚

External Turning PCBN

Fig 1

D

–6˚

LF

–5˚

LH

R

Figure shows right-hand (R) tool.

Holder

Parts 

Dimensions ( mm )

Shim Pin

Lever Pin

Cutting Edge Height

Wrench

Bolt

Shim

Applicable Insert

Stock

Overall Length

Cutting Edge

Height Width

Head

S

Cat. No.

Fig

Ref. Page

R L

Cat. No.

H B LFWFHFLH

(For Hex Socket)

PCBN R/L 2020K12 PCBN R/L 2520M12 PCBN R/L 2525M12 PCBN R/L 3225P12 PCBN R/L 2525M16 PCBN R/L 3225P16 PCBN R/L 3232P16 PCBN R/L 3232P19 PCBN R/L 4040R19

1 LCL4 LCS4 LSC42 LSP4 LH030 1

20 20 125 17 20 27 25 20 150 17 25 27 25 25 150 22 25 27 32 25 170 22 32 27 25 25 150 22 25 33 32 25 170 22 32 33 32 32 170 27 32 33 32 32 170 27 32 38 40 40 200 35 40 38

 

T

CN □□ 43 □

B22

1 1

 

1 LCL5 LCS5 LSC53 LSP5 LH030 1

CN □□ 54 □

B26

V

1

1 LCL6 LCS6 LSC63 LSP6 LH040

CN □□ 64 □

B28

1

Applicable Inserts DCLN / PCLN / PCBN / PCFN 1st Recommended Insert ● Refer as well to the Insert Selection Guide (page A10).

W

EGU Name of

Chipbreaker / CBN / PCD

Photo Grade

● Some combinations need to be made to order or cannot be manufactured.

AC8025P

P (Steel)

M (Stainless Steel)

K (Cast Iron)

S (Exotic Alloy)

N (Non-ferrous) H (Hardened Steel)

Cutting Range

Process

Finishing Medium Cutting Roughing Finishing Medium Cutting Roughing High-speed Finishing Finishing to Medium Cutting Medium to Roughing Finishing Medium Cutting Roughing High-precision/Finishing Finishing to Medium Cutting

Coated Uncoated

EGU

EMU

EEG

EEM

EUZ

EGZ

EEF

EEG

EEM

AX

EFE

SUMIBORON

SUMIBORON

EEF

SUMIDIA

SUMIBORON

Continuous Cutting

T1500Z

AC8015P

AC8025P

AC6020M

AC6020M

AC6030M

BN7000/BNC500

AC4010K

AC4010K

AC5015S

AC5015S

AC5015S

DA1000

H1

BNC2010

BN1000

EEF

SUMIBORON

SUMIDIA

ESU

EGU

EMU

EEG

EEM

EGZ

EGZ

EEF

EEG

EEM

AX

SUMIBORON

SUMIBORON

General Cutting

AC8015P

AC8025P

AC8025P

AC6030M

AC6030M

AC6040M

BN7000/BNC500

AC4015K

AC4015K No Chipbreaker

AC5015S

AC5015S

AC5025S

DA1000

H1

BNC2020

BN2000

ESX

EMX

SUMIBORON

SUMIDIA

SUMIBORON

EUX

EEF

EEG

EGZ

EEF

EEG

EEM

EEM

SUMIBORON

Interrupted Cutting Recommended Cutting Conditions

-

AC8025P

AC8035P

AC8035P

AC6030M

AC6040M

AC6040M

BN7000/BNC500

AC420 K A16 on

AC420K

AC5025S

AC5025S

AC5025S

DA1000

BNC300

BN350

A10 on

A14 on

A18 on

A22 on

A20 on

l = USA Stocked Item  = World Wide Warehouse Item

BNC500 is for ductile cast iron.

C8

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