Crafted from metal, this twist drill bit wear resistance and heat durability, ensuring a long life for demanding tasks Ground drill Bit for fast drilling result with low force without prepunching or predrilling Stainless steel twist drill bits deliver wear resistance and heat tolerance for drilling through metal The drill is a consumable item that is prolonged use and can be further used by grinders Creates clean and holes Works in most hard materials Straight round shank, suitable for most drill rigs, Manufacturer: RGYBAO