Boring Bars BSTJO / B-STUP / BCTJP Type
Internal Boring BSTJO
GAMF
DMIN Min. Bore Dia.
2°
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
Cat. No.
Fig
Ref. Page
E
R L
Cat. No.
N m
DMIN DCON H HF LF WF W GAMF BSTJO R/L 065 ▲▲ 0.313 0.375 — — 5.00 0.156 0.336 -12° TB □□ 52 □ ▲▲ 0.375 0.375 — — 5.00 0.188 0.336 -8° TP □□ 63 □ BSTJO R/L 066
(For Torx Socket)
B104 1 B110 1
TRX06 BFTX0204A
BSTJO R/L 062 ▲▲ 0.500 0.375 — — 6.00 0.250 0.336 -5° BSTJO R/L 082 ▲▲ 0.625 0.500 — — 6.00 0.312 0.462 -4° ▲▲ 0.750 0.625 — — 6.50 0.375 0.586 -2° BSTJO R/L 123 ▲▲ 1.000 0.750 — — 10.00 0.500 0.672 -2° BSTJO R/L 102 ▲▲ 1.125 1.000 — — 12.00 0.563 0.882 0° BSTJO R/L 163
BFTX0306A BFTX0307A
1 1 1 1 1
TP □□ 22 □
B113
TRX10
C
TP □□ 33 □
B116
TRX15 BFTX0410A
Wrench for shim is sold separately from the main body.
Internal Finishing to Medium Cutting Screw-on
Steel with Anti-Vibration Mechanism
93˚
D
B-STUP Stop Boring
DMIN Min. Bore Dia.
DMIN Min. Bore Dia.
Fig 1
Fig 2
DCON
DCON
93˚
93˚
R
H
H
GAMF
GAMF
LF
LF
S
5°
5°
LHD
LHD
Figure shows right-hand (R) tool.
Holder
Parts
Dimensions ( mm )
Cutting Edge Distance
Stock Min. Bore Dia.
Applicable Insert
Flat Screw Wrench
Rake Angle
Overall Length
Diameter Height
Head
Cat. No.
Fig
T
R L
Cat. No.
N m
DMIN DCON H LF WF LHD GAMF
(For Torx Holes)
10 8 7 100 5.0 13 -10° TP □□ 63 □
B08H-STUP R/L0802-10 B10K-STUP R/L1103-12
B110 1 BFTX0204A 0.5 TRX06
12 10 9 125 6.0 15
-8°
1 1
BFTX0306A 2.0
B12M-STUP R/L1103-14 14 12 11 150 7.0 17 -7° B12M-STUP R/L1103-16 16 12 11 150 8.0 17 -6°
V
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
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
-4° -2° -2° -2° -2° -3° -2° -2°
TP □□ 22 □
B113
TRX10
Steel with Anti-Vibration Mechanism
1 1 1 2
BFTX0307A 2.0
W
1 BFTX0410A 3.4 TRX15 1
TP □□ 33 □
B116
2
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 Boring BCTJP
DMIN MIN BORE
3°
DCON
H
LF
WF
5°
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 ▲ BCTJP R/L 163 ▲ BCTJP R/L 243 ▲ BCTJP R/L 283 ▲ BCTJP R/L 404 ▲
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 ▲▲ 1.531 1.250 — — 14.00 0.765 1.100 —
TP □□ 32 □ B115
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 □ B119 1
CBT44 STPD422
Wrench for shim is sold separately from the main body.
E52
• USA Stocked Item Worldwide Warehouse Item ▲ USA Limited Availability Item
N m Recommended Tightening Torque (N·m)
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