Lathe Tool Bit Angles
Material Side Relief Front Relief Side Rake Back Rake
Aluminium 12° 16° 35°
Brass 10° 5° ~ -4°
Bronze 10° 5° ~ -4°
Cast Iron 10° 12°
Copper 12° 10° 20° 16°
Steel 10° ~ 12° 12° ~ 18° 8° ~ 15°
Tool Steel 10° 12°
Stainless Steel 10° 15° ~ 20°