Solid submicron grain carbide end mill - center cutting Shorter flute length for rigidity 3 degree helix - rhs/rhc
5/16 5/16 STUB BALL EM 4FL D/E SMG Solid submicron grain carbide end mill - center cutting Shorter flute length for rigidity 30 degree helix - rhs/rhc Center Cutting Ball radius tolerance +.000-.001 (+.000-.025mm)