... tool,metal material 3)Material:HSS ,carbide Carbide straight shank twist dril bit, carbide drill, solide carbide drill, carbide drill bit ... Mill, Corner Radius End Mill, Roughing End Mill, Drill Bits, Twist Drill, Center Drill, Spotting Drill, Saw Blade, Reamer, Side & Face ... , quenched steel, non-ferrous metals, etc.6) Good for machining up to HRC70 degree.7) Less cutting resistance.8) Size standard ...