Uxcell Cemented Carbide Twist Drill Bit Metal Drill Cutter for Stainless Steel Copper Aluminum Zinc Alloy Iron 6pcs 4.5mm

Twist drill bits are made of cemented carbide tip for long service life. Milled U-flutes with deep-cut spiral deliver fast material removal. Suitable for drilling in tough metal, including abrasive alloy and hardened steel. Drills clean, accurate holes in sheet metal, steel, copper, brass, aluminum, plastic, wood, stainless steel and cast iron. Round shank twist drill bit can work with a electric drill (Excluding in the item). Please use low speed when drilling and note the temperature of carbide tip is not too high for extending drill bit life.