Sumitomo General Catalog 2025-2026

Boring Bars S-PSKN / S-PSYN

For Medium Diameter General Lever Lock

Steel

75°

DMIN Min. Bore Dia.

S-PSKN Through Boring

Fig 1

DCON

Fig 2

75°

75°

H

LF

-10°

E

-6°

( LHD )

Figure shows right-hand (R) tool.

Holder

Parts

Dimensions ( mm )

Shim Pin

Applicable Insert

Lever Pin

Cutting Edge Distance

Wrench

Bolt

Shim

Stock Min. Bore Dia.

Overall Length

Diameter Height

Head

C

Cat. No.

Fig

R L

Cat. No.

DMIN DCON H LF WF LHD

(For Hex Socket)

S32S-PSKN R/L1204-40   40

1 1 1 1 2

32 30 250 22.0 (21) 32 30 250 22.0 (21) 40 37 300 27.0 (21) 40 37 300 27.0 (21)

S32S-PSKN R/L1204-44

44

LSS42B

D

S40T-PSKN R/L1204-50   50

SN □□ 4 3□ B41

LCL4 LCS4

LSP4 LH030

Steel

S40T-PSKN R/L1204-54

54

LSS42

S50U-PSKN R/L1204-63   63

50 47 350 31.5

LSS42B

S50U-PSKN R/L1906-70

70 50 47 350 35.0 (31) SN □□ 64 □ B46 1 LCL6 LCS6 LSS63 LSP6 LH040

R

Right-handed (R) tool holders are compatible with left-handed (L) or neutral (N) inserts. Left-handed (L) tool holders are compatible with right-handed (R) or neutral (N) inserts. ( ) is a reference value.

S

For Medium Diameter General Lever Lock

T

Steel

85°

S-PSYN Through Boring

DMIN Min. Bore Dia.

Fig 1

DCON

V

85˚

H

LF

GAMF

W

-6°

LHD

Figure shows right-hand (R) tool.

Holder

Parts

Dimensions ( mm )

Shim Pin

Applicable Insert

Lever Pin

Cutting Edge Distance

Wrench

Bolt

Shim

Stock Min. Bore Dia.

Overall Length

Diameter Height

Head

Cat. No.

Fig

R L

Cat. No.

DMIN DCON H LF WF LHD

(For Hex Socket)

Steel S32S-PSYN R/L1204-44   44

32 30 250 22 (22) SN □□ 43 B41 1 LCL4 LCS4 LSS42B LSP4 LH030

Right-handed (R) tool holders are compatible with left-handed (L) or neutral (N) inserts. Left-handed (L) tool holders are compatible with right-handed (R) or neutral (N) inserts. The LHD ( ) is a reference value.

E21

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