HAR 5/16 SNGL FORM CARB/ALTIN THR MILL .240x1/4x1.0x2.1/2 4FBrand = Harvey ToolThread Size = 5/16Cutting Diameter = 0.2400"Length of Cut/Reach = 1.0000" (25.400 mm )Overall Length = 2.5000" (63.500 mm )Shank Diameter = 0.2500" (6.350 mm )# of Flutes = 4Shank Type = CylindricalType of Flute = STCoolant Hole = NoCoating = AlTiNMaterial = CarbideInternal/External = Internal/External