Boring Bars D-DWLN / BMWLN Type
Coolant Hole Steel with Anti-Vibration Mechanism
Medium Diameter General-purpose Double Clamp
95°
D-DWLN Bottom Facing
Fig 1
DMIN Min. Bore Dia.
With oil hole
DCON
95°
H
LF
GAMF
-6°
E
LHD
Figure shows right-hand (R) tool.
Holder
Parts
Dimensions ( mm )
Applicable Insert
Shim Screw
Upper Surface Wrench
Lower Surface Wrench
Cutting Edge Distance
Stock Min. Bore Dia.
Clamp Set
Shim
Overall Length
Rake Angle
Diameter Height
Head
Cat. No.
Fig
C
R L
Cat. No.
N m
DMIN DCON H LF WF LHD GAMF
(For Hex Socket) (For Hex Socket)
D25T-DWLN R/L0804-32 • • 32 25 23 300 17 26 -12° D32T-DWLN R/L0804-40 • • 40 32 30 300 22 26 -10° D40U-DWLN R/L0804-50 • • 50 40 37 350 27 26 -10°
WNS0803B BFTX0307N
1 1
Steel with Oil Hole with Anti-Vibration Mechanism
WN □□ 43 □ B71
SCP-2 5.0
LH040 LH025
WNS0804B BFTX0409N
1 Feed direction of applicable inserts differs according to machining details. (Refer to * note below)
D
C63
Clamp Set Parts
* Applicable Inserts for DWLN Type For internal diameter machining: 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. For facing: Right-handed (R) tool holders are compatible with right-handed (R) or neutral (N) inserts. Left-handed (L) tool holders are compatible with left-handed (L) or neutral (N) inserts.
R
Internal Boring BMWLN
DMIN Min. Bore Dia.
S
DCON
T
H
5°
LF
θ
GAMF
V
Holder
Parts
Dimensions (inch)
Min. Bore Dia.
Cutting Edge Height
Cutting Edge Distance
Applicable Insert
Overall Length
Rake Angle
Wrench Shim Pin Clamp Screw
Diameter Height
Width
W
Cat. No.
Fig
Ref. Page
R L
Cat. No.
N m
DMIN DCON H HF LF WF W GAMF
(For Hex Socket) LH030
BMWLN R/L 164 ▲▲ 1.250 1.000 — — 12.00 0.625 0.875 -15° BMWLN R/L 204 ▲▲ 1.530 1.250 — — 14.00 0.765 1.132 -14° BMWLN R/L 244 ▲▲ 1.780 1.500 — — 14.00 0.890 1.382 -12°
1 1 1
WN □□ 43 □ B71
5.0
SWB422 BWP46 BCH05RM6L WB6-16
LH025
• Wrench for shim is sold separately from the main body.
Maximum overhang = 3xD
1st Recommended Insert Refer as well to the Insert Selection Guide (page A10 on). Some combinations need to be made to order or cannot be manufactured. Applicable Inserts S-DWLN / BMWLN / D-DWLN / S-PWLN Type
Name of Chipbreaker/ CBN/PCD
EGU
Photo Grade
AC8025P
Cutting Range H (Hardened Steel) Finishing Medium Cutting Roughing Finishing Medium Cutting Roughing Finishing to Medium Cutting Medium to Roughing Finishing Medium Cutting Roughing Coated Uncoated Continuous Cutting EFE T1500Z EGU AC8015P EMU AC8025P EEF AC6020M EEG AC6020M EEM AC6030M EUZ AC4010K EGZ AC4015K EEF AC5015S EEG AC5015S EEM AC5015S SUMIBORON BNC2010 SUMIBORON BN2000 Process P (Steel) M (Stainless Steel) K (Cast Iron) S (Exotic Alloy)
ESU
EGU
EMU
EEG
EEM
EGZ
EGZ
EEF
EEG
EEM
SUMIBORON
EEF
SUMIBORON
General Cutting
AC8015P
AC8025P
AC8025P
AC6030M
AC6030M
AC6040M
AC4015K
AC420 K
AC5015S
AC5015S
AC5025S
BNC2020
BN2000 SUMIBORON
EUX
EEG
EGZ
EEF
EEG
EEM
EEM
ESX
EMX
EEF
SUMIBORON
No Chipbreaker
Interrupted Cutting Recommended Cutting Conditions
AC8025P
AC8035P
AC8035P
AC6030M
AC6040M
AC6040M
AC420 K
AC5025S
AC5025S
AC5025S
BNC2020
BN2000
AC420K
A10 on
A14 on
A16 on
A18 on
A20 on
E29
N m Recommended Tightening Torque (N·m)
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