Section E 25-26

Boring Bars BSTJO / B-STUP / BCTJP

Steel

Internal Boring BSTJO

GAMF

DMIN Min. Bore Dia.

DCON

H

θ°

LF

Holder

Parts 

Dimensions (inch)

Min. Bore Dia.

Cutting Edge Height

Cutting Edge Distance

Rake Angle

Overall Length

Stock

Applicable Insert

Wrench Screw

Diameter Height

Width

E

Cat. No.

Fig

Ref. Page

R L

Cat. No.

N m

DMIN DCON H HF LF WF W GAMF BSTJO R/L 065 l l 0.313 0.375 — — 5.00 0.156 0.336 -12° TB □□ 52 □ l l 0.375 0.375 — — 5.00 0.188 0.336 -8° TP □□ 63 □ BSTJO R/L 066

(For Torx Socket)

B101 1 B107 1

TRX06 BFTX0204A

BSTJO R/L 062 l l 0.500 0.375 — — 6.00 0.250 0.336 -5° BSTJO R/L 082 l l 0.625 0.500 — — 6.00 0.312 0.462 -4° l l 0.750 0.625 — — 6.50 0.375 0.586 -2° BSTJO R/L 123 l l 1.000 0.750 — — 10.00 0.500 0.672 -2° BSTJO R/L 102 l l 1.125 1.000 — — 12.00 0.563 0.882 0° BSTJO R/L 163

BFTX0306A BFTX0307A

1 1 1 1 1

TP □□ 22 □

B111

TRX10

C

TP □□ 33 □

B114

TRX15 BFTX0410A

Wrench for shim is sold separately from the main body.

Internal Finishing to Medium Cutting Screw-on

D

Steel with Anti-Vibration Mechanism

DMIN Min. Bore Dia.

93˚

DMIN Min. Bore Dia.

Fig 1

Fig 2

DCON

DCON

B-STUP Stop Boring

93˚

93˚

R

H

H

GAMF

GAMF

LF

LF

LHD

LHD

Figure shows right-hand (R) tool.

S

Holder

Parts

Dimensions ( mm )

Rake Angle

Stock Min.

Applicable Insert

Flat Screw Wrench

Overall Length

Cutting Edge Distance

Diameter Height

Head

Bore Dia.

Cat. No.

Fig

R L

Cat. No.

N m

DMIN DCON H LF WF LHD GAMF

(For Torx Holes)

T

8 7 100 5.0 13 -10° TP □□ 63 □ B107 1 BFTX0204A 0.5 TRX06

B08H-STUP R/L0802-10 B10K-STUP R/L1103-12

10

   

12 10 9 125 6.0 15 14 12 11 150 7.0 17 16 12 11 150 8.0 17 18 16 15 200 9.0 18 20 16 15 200 10.0 18 22 20 18 250 11.0 18 28 25 22 300 14.0 18 40 32 30 300 20.0 50 25 20 18 250 12.5 18 28 25 22 300 14.0 18 40 32 30 300 20.0 53

-8° -7° -6° -4° -2° -2° -2° -2° -3° -2° -2°

1 1

BFTX0306A 2.0

B12M-STUP R/L1103-14   B12M-STUP R/L1103-16  

1 BFTX0307A 2.0 1 BFTX0306A 2.0

B16R-STUP R/L1103-18 B16R-STUP R/L1103-20 B20S-STUP R/L1103-22 B25T-STUP R/L1103-28 B32T-STUP R/L1103-40 B20S-STUP R/L1604-25 B25T-STUP R/L1604-28 B32T-STUP R/L1604-40

               

TP □□ 22 □ B111

TRX10

V

1 1 1 2 1 1 2

BFTX0307A 2.0

W

TP □□ 33 □ B114

BFTX0410A 3.4 TRX15

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.

Steel

DMIN MIN BORE

Internal Boring BCTJP

DCON

H

LF

WF

Holder

Parts 

Maximum overhang = 3xD

Dimensions (inch)

Chip Breaker Piece

Min. Bore Dia.

Cutting Edge Height

Cutting Edge Distance

Applicable Insert

Seat Screw

Clamp Bolt

Rake Angle

Overall Length

Wrench

Shim

Clamp

Diameter Height

Width

Cat. No.

Fig

Ref. Page

R L

Cat. No.

N m

DMIN DCON H HF LF WF W GAMF 1.000 0.750 — — 12.00 0.500 0.770 — 1.156 1.000 — — 12.00 0.578 0.980 —

(For Hex Socket)

BCTJP R/L 123 l BCTJP R/L 163 l BCTJP R/L 243 l BCTJP R/L 283 l BCTJP R/L 404 l

CBT23

WB6-13

1 1 1 1 1

2.0

— —

LH030

CCM6BR/L

WB616

N m Recommended Tightening Torque (N·m) BCTJP R/L 203 l l 1.531 1.250 — — 14.00 0.765 1.100 —

TP □□ 32 □ B116

CBT43

1.781 1.500 — — 14.00 0.890 1.315 — 2.031 1.750 — — 14.00 1.015 1.570 —

STDP322

2.0

BF0308

LH040

CCM8F WB8F-30

3.063 2.500 — — 16.00 1.531 2.315 — TP □□ 43 □ B117 1

CBT44 STPD422

Wrench for shim is sold separately from the main body.

• USA Stocked Item  Worldwide Warehouse Item

N m Recommended Tightening Torque (N·m)

E52

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