High Speed Steel End Mill, Square End, List Number HD4CTN, Number of Flutes 4, End Center, End Style Double End, Cutting Type Center, Cutting Direction Right Hand, Finish TiN Coated, Diameter 9/32 In, Shank Dia. 3/8 In, Length of Cut 11/16 In, Overall Length 3 3/8 In, Application Copper, Alloy Steel, Cast Iron, Magnesium