LittleMachineShop.com is the premier source of tooling, 
parts, and accessories for bench top machinists.
The premier source of tooling, parts, and accessories for bench top machinists.
 
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Have you seen?
Tooling Package, Mini Lathe, Tormach 0XA QCTP
 
Most Popular of
Mini Mill Accessories
Locking Lever, Old Style
Locking Lever, Old Style
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lmscnc.com/calc

 
 
Onliine Metals  

 

  

Rake and Relief Angles

These rake and relief angles are for high speed steel lathe tool bits.

Toolbit angles

 

Material Side Relief Front Relief Side Rake Back Rake
Aluminum 12 8 15 35
Brass 10 8 5 to -4 0
Bronze 10 8 5 to -4 0
Cast iron 10 8 12 5
Copper 12 10 20 16
Machine Steel 10 to 12 8 12 to 18 8 to 15
Tool Steel 10 8 12 8
Stainless Steel 10 8 15 to 20 8

 

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