CBN Small Hole Boring Bars BSME
■ Features ● Achieves the minimum bore diameter of ø2.5mm (ø.098") in boring of hardened steel ● Achieves high-precision cutting edge positioning thanks to the newly developed clamp mechanism ● Expands the range of small hole boring to achieve more high-efficiency machining requiring no grinding ● BSME: Brazed Style Can be used with part diameters from ø2.5 to 5.0mm (ø.098 to .197") ● SEXC: Indexable Insert Can be used with part diameters from ø4.0 to 6.0mm (ø.157 to .236")
E
Carbide
C
Oil Hole
SUMIBORON Brazed
BSME Internal Turning and Facing
Fig 1
Fig 2
DMIN Min. Bore Dia. 10°
DMIN Min. Bore Dia.
10°
D
RE
RE
CDX
CDX
LF
LF
R
Holder (
CBN- SUMIBORON)
Dimensions ( mm )
Neck Diameter
Overall Length
Min. Bore Dia.
Cutting Edge Distance
Max. Boring Depth
Corner Radius
BN2000
Diameter
Applicable Sleeve
Cat. No.
Fig
R L
S
DMIN DCON DN
LF
WF
CDX
RE
BSME R/L 25020D2S6 BSME R/L 25020D3S6 BSME R/L 25020D4S6 BSME R/L 30020D2S6 BSME R/L 30020D3S6 BSME R/L 30020D4S6 BSME R/L 35020D2S6 BSME R/L 35020D3S6 BSME R/L 35020D4S6 BSME R/L 40020D2S6 BSME R/L 40020D3S6 BSME R/L 40020D4S6 BSME R/L 45020D2S6 BSME R/L 45020D3S6 BSME R/L 45020D4S6 BSME R/L 50020D2S6 BSME R/L 50020D3S6 BSME R/L 50020D4S6
2.5 2.5 2.5 3.0 3.0 3.0 3.5 3.5 3.5 4.0 4.0 4.0 4.5 4.5 4.5 5.0 5.0 5.0
6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0
2.0 2.0 2.0 2.5 2.5 2.5 3.0 3.0 3.0 3.5 3.5 3.5 4.0 4.0 4.0 4.5 4.5 4.5
32.0 34.5 37.0 32.8 35.8 38.8 33.5 37.0 40.5 33.9 37.9 41.9 35.0 39.5 44.0 35.8 40.8 45.8
1.20 1.20 1.20 1.45 1.45 1.45 1.70 1.70 1.70 1.95 1.95 1.95 2.20 2.20 2.20 2.45 2.45 2.45
5.3 7.8
.2 .2 .2 .2 .2 .2 .2 .2 .2 .2 .2 .2 .2 .2 .2 .2 .2 .2
1 1 1 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2
10.3
6.3 9.3
T
12.3
7.3
10.8 14.3
V
HBSM60____
8.3
12.3 16.3
9.3
W
13.8 18.3 10.3 15.3 20.3
The BSME Type requires HBSM6020 (A) adapter sleeve (sold separately).
Alignment Jig Cat. No.
Fig 1
Fig 2
Stock
DC DCB
DC DCB
M8
Rc1/8
AFBSM60
19
LF
LF
This jig is used for centring sleeves when setting them into holders.
Achieves high-precision cutting edge positioning by combining a tool/holder that has a tapered rear end with a sleeve that Newly Developed Clamp Mechanism
Sleeve
Dimensions (Inch / mm )
Set Screw
OD Dia.
Bore Dia.
Overall Length
Wrench
Cat. No.
Fig
has an internal positioning pin. (common to BSME and SEXC) Set Screw
DC DCB LF
● .750 ● 1.000
HBSM601905 HBSM602054 HBSM6020 HBSM6020A
6.0 80 6.0 80
1 1 1 2
Tool/Holder
BT0506 TH025
20 6.0 80 20 6.0 80
Tapered Rear End
Adapter sleeve is optional.
Positioning Pin
Adapter Sleeve
• USA Stocked Item Worldwide Warehouse Item
E70
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