Kodiak Cutting Tools KCT137718 USA Made Premium Carbide End Mill, Extra Long, 4 Flute, 5/16" Shank, 4" Overall Length, 1-5/8" Length of Cut, 5/16" Diameter;

5/16 Inch Diameter Solid Carbide End Mill - Extra Long 5/16" Shank 1-5/8" Length of Cut 4" Overall Length 4 Flute Carbide - Extra Long - ALTiN Coated

Diameter Tolerance: +.000"/-.002"
Shank Diameter Tolerance: -.0001"/-.0004"

ALTIN is a high performance coating for milling, tapping and drilling in stainless steels, carbon steels, alloy steels, titanium and cast iron. This coating is extremely heat resistant and can be used with or without coolant. It is exceptional in difficult to machine materials where adhesive wear is particularly high.