uxcell Helical Groove 12mm x 40mm Tip Diameter 4 Flutes End Mill Cutter Gray Product Name : 4 Flutes End Mill;Material : HSS Cutting Diameter : 12mm/ 15/32";Cutting Depth : 40mm/ 1.6" Shank Diameter : 12mm/ 15/32";Total Length : 85mm/ 3.3" Color : Gray;Weight : 65g Package Content : 1 x 3Flutes End Mill