PBT Back Turning
Back Turning Lever Lock
Back Clamp
Fig 2
Fig 1
HBL
0˚
LF
0˚
HBL
Holder
Parts
Dimensions ( mm )
Lever Pin
Set Screw
Pin Wrench
Cutting Edge Distance WF
Cutting Edge Height HF
Overall Length LF
Height
Width
Offset
Cat. No.
Applicable InsertsFig
H
B
HBL
(For Hex Socket)
PBT35R1010 PBT35R1212 PBT35R1616 PBT35R2020 PBT55R1010 PBT55R1212 PBT55R1616 PBT55R2020 PBT80R1010 PBT80R1212 PBT80R1616 PBT80R2020
2 1 1 1 2 1 1 1 2 1 1 1
10 10 120 2.5 12 12 120 2.5 16 16 120 2.5 20 20 120 2.5 10 10 120 3.7 12 12 120 3.7 16 16 120 3.7 20 20 120 3.7 10 10 120 5.2 12 12 120 5.2 16 16 120 5.2 20 20 120 5.2
10 12 16 20 10 12 16 20 10 12 16 20
20
« « « « « « « « « « « «
BTT0407
- - -
BTR35 ○○
LCL09
LP07 TH020
BTT0411
22
BTT0407
- - -
BTR55 ○○
LCL09
LP07 TH020
BTT0411
25
BTT0407
- - -
BTR80 ○○
LCL09
LP07 TH020
BTT0411
(
Coated Carbide /
DLC Coating /
Cermet)
Insert
Dimensions ( mm )
Maximum Depth of Cut CDX
Overall Length L
Width of Cut CW
Nose Radius RE
Applicable Holders
Fig 1
Cat. No.
Fig
ø6.8
RE
BTR3505 BTR3508 BTR3515 BTR5505 BTR5508 BTR5515 BTR8005 BTR8008 BTR8015
●
● ● ● ●
p «
1
0.05 0.08 0.15 0.05 0.08 0.15 0.05 0.08 0.15
SBT35R ○○○○ PBT35R ○○○○
● ● ●
15 3.5 2.5
« «
CDX
●
● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
p «
1 1
L
p « «
PBT55R ○○○○
19 5.5 3.7
« «
15°
p « «
p
1
-
CDX
PBT80R ○○○○
● ● ●
24 8.0 5.2
● ● ● ●
p
1
-
Recommended Cutting Conditions
S Exotic Alloy
Part Material
N Non-ferrous Metal
P Free-Cutting Steel
P Carbon Steel
M Stainless Steel
Tooling
Plunging Traverse Cut Plunging Traverse Cut Plunging Traverse Cut Plunging Traverse Cut Plunging Traverse Cut
Cutting Speed (v c ) (SFM) 500 to 1000 Feed Rate f (IPR) .0008 - .004 .0008 - .006 .0008 - .002 .0008 - .004 .0008 - .0015.0008 - .0025.0004 to .0012.0004 to .0016 .0008 - .002 .0008 - .004 Coolant Oil-based 165 to 500 165 to 500 165 to 500 65 to 265
● : USA Stock Item ● : Newly Added USA Stock Item (2025)
: Worldwide Warehouse Item p : USA Limited Availability Item
: Newly Added Worldwide Warehouse Item (2025)
Shank Tolerance of SBT / PBT A positive tolerance (0.1 - 0.3) is applied to the shank height (H) to prevent the cutting edge from interfering with the toolpost. Tool Overhang
Shank height ( H ) is greater than cutting edge height ( HF ). Toolpost
Amount of tool overhang can be shortened when mounted on a toolpost.
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