10/7PCS Serrated Drill Bits Set High Strength Special Serrated Twist

Feature Special Serrated Drill Bits: serrated drill bits are made of hard alloy, combining hardness, toughness, wear resistance and impact resistance, which effectively reduces construction losses and improves operational efficiencyHexagonal shank design: The unique hexagonal shank structure ensures excellent stability and grip during drilling operations, reduces slippage, realizes precise drilling, and enhances the accuracy of work resultsTool fit: This high strength serrated twist drill bit is designed for hand drill users, with a sharp and long lasting HSS cutting edge to prolong the life of the drill and keep it working efficientlyWidely applicable to a variety of materials: suitable for concrete, wood, plastics and a variety of composite materials, the bit is sharp and burr-free, and the polished surface ensures smooth threads, which makes it easy to cope with a variety of application scenariosVarious sizes to meet the demand: provide different sizes of drill bits from 3mm to 12m