Sumitomo General Catalog 2025-2026

Boring Bars S-SVQB / S-SVUB

Internal Profiling Screw-on

DMIN Min. Bore Dia.

Steel

108°

Fig 1

DCON

108°

S-SVQB Profiling

H

LF

35°

-6.5°

(-4.5°)

Figure shows right-hand (R) tool.

Holder

Parts

Dimensions ( mm )

Applicable Insert

Cutting Edge Distance

Pin Bolt Shim Flat Screw Wrench Bolt Wrench

Stock Min. Bore Dia.

Overall Length

E

Diameter Height

Offset

Cat. No.

Fig

R L

Cat. No.

N m

DMIN DCON H LF WF E1

(For Torx Holes) (For Hex Socket)

S20R-SVQB R/L 1103-25   25 20 18 200 14.5 5.5 S25S-SVQB R/L 1103-32   32 25 23 250 19.0 7.5 S25S-SVQB R/L 1604-34   34 25 23 250 20.5 9.0 S32T-SVQB R/L 1604-40   40 32 30 300 22.0 9.0

1 1 1

VB □□ 22 □ B119

BFTX02508NV 1.5 TRX08

— — — — — —

— —

Steel

C

VB □□ 33 □ B121

BFTX03508 2.0 TRX10

1 VP32B 1 VP40B

BH03504 SVP32

LH020

S40T-SVQB R/L 1604-50

  50 40 37 300 27.0 10.0

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.

Internal Profiling Screw-on

D

Steel

93˚

Fig 1

Fig 2

DMIN Min. Bore Dia.

DMIN Min. Bore Dia.

DCON

DCON

Fig 3

S-SVUB Profiling

93°

93°

GAMP

R

H

H

LF

LF

GAMF

GAMF

GAMP

GAMP

S

Figure shows right-hand (R) tool.

Holder

Parts

Dimensions ( mm )

Cutting Edge Distance

Applicable Insert

Stock Min. Bore Dia.

Pin Bolt Shim Flat Screw Wrench For Bolt Wrench

Overall Length

Rake Angle

Rake Angle

Diameter Height

Offset

Cat. No.

Fig

R L

Cat. No.

T

N m

DMIN DCON H LF WF E1 GAMF GAMP S20R-SVUB R/L1103-28   28 20 18 200 17.5 7.5 -7.5° -3.0° S25S-SVUB R/L1604-34   34 25 23 250 20.5 9.0 -7.5° -3.0° S32T-SVUB R/L1604-40   40 32 30 300 23.5 10.5 -7.5° -3.0° S25S-SVUB R/L1103-32   32 25 23 250 19.0 7.5 -6.5° -2.5°

(For Torx Holes) (For Hex Socket)

1 2 2

VB □□ 22 □ B119

BFTX02508NV 1.5 TRX08

— — — — — —

— —

VB □□ 33 □ B121

3 VP32B 3 VP40B

BFTX03508 2.0 TRX10

V

BH03504 SVP32

LH020

S40T-SVUB R/L1604-50

  50 40 37 300 29.5 12.5 -7.5° -3.0°

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.

W

 Worldwide Warehouse Item

1st Recommended Insert ● Refer as well to the Insert Selection Guide (page A10). Applicable Inserts S-SVJB / B-SVJB / S-SVQB / B-SVQB / C-SVQB / S-SVUB / B-SVUB / C-SVUB / S-SVZB / B-SVZB / C-SVZB EGU Name of Chipbreaker/ CBN/PCD

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

Photo Grade

P (Steel)

M (Stainless Steel)

K (Cast Iron)

S (Exotic Alloy) N (Non-Ferrous)

H (Hardened Steel)

Application Range

AC8025P

Finishing to Medium Cutting No Chipbreaker

Finishing to Medium Cutting

Finishing to Medium Cutting

Medium Cutting

Medium Cutting

High-speed Finishing

Finishing

Finishing

Coated Uncoated

Process

CBN

MESI

EFB

ELB

EGU

EGU

CBN

CBN

AY

General Machining

H1

BNC2125

BN2000

T1500Z

AC8025P

AC6030M

AC6030M

BN7125/BNC500

AC4015K

AC5015S

CBN

CBN

MESI

FYS

FYS

MESI

MESI

CBN

High- precision Recommended Cutting Conditions

AC1030U

AC1030U

AC1030U

AC1030U

BN7125/BNC500

AC5015S

BNC2115

BN1000

A14~

A18~

A22~

A20~

A10~

A16~

BNC500 is for ductile cast iron.

E54

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