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PARTING SELECTION GUIDE
PARTING

JT-Type J-Type
Based on the J-type chipformer with a • First choice for soft materials, parting tubes,
T-land reinforced frontal cutting edge. small diameters and thin-walled parts
• Provides a solution for the intermediate range • Cutting edge with positive rake
between the strong and negative C-type configuration • Low-to-medium feed
and the positive edged J-type chipformer.
• Can be used on a wide range of materials.
• Same manner as the J-type, but it can be used
at higher feeds due to its reinforced edge.

f ≈ W insert [inch/rev] f ≈ W insert [inch/rev]

24

26

High High
Alloy Austenitic Nonferrous Cast Alloy Austenitic Nonferrous Cast
Steel Stainless Temp. Materials Iron Steel Stainless Temp. Materials Iron
Alloys Alloys
3 3 3 7 3 3 3 3 3 7
Recommendations Are for Neutral Inserts.
For R/L Inserts, Reduce Feed by 20-40%.

5° 4°

7°
7°

Recommended feed range as a function of insert width Recommended feed range as a function of insert width
Feed Feed
ipr ipr
.012
.0100
.010
.0086
.008
.0071
.006 .0055
.004 .0039

Width
.079 .118 .157 .197 .236 .276 inch .0023
.0008 Width
.039 .055 .063 .079 .118.157 .197 .236 inch

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