13.5mm-30mm HSS Cobalt Drill Bit Reduced Shank Drills for Wood Stainless Steel
Material Quality: HSS-6542 High-speed Hteel Containing Cobalt. Application: Suitable For Drilling Various Materials Such as Die Steel, L-beam, Ordinary Steel, Angle iron, Aluminum, Copper, Wood, Stainless Steel Within 1-4mm, etc.