Milwaukee Shockwave Impact Duty 7/8 In. - 1-1/8 In. #9 Step Drill Bit, 2 Steps Brand_National Reinforced shoulder for impact resistance

Reinforced shoulder for impact resistance in nail-embedded wood

Double Duty Upgrade features a tooth form optimized for the longest life and maximum durability

Molded block has 1 threaded hole and 1 tapered hole with protective plastic bumper

high performance blades feature bi-metal technology that delivers up to 5x longer life of standard blades

Milwaukee Shockwave Impact Duty 7/8 In. - 1-1/8 In. #9 Step Drill Bit, 2 Steps Brand_National Reinforced shoulder for impact resistanceShockwave Impact Duty Step Bits are engineered to deliver the most durable and fastest impact step bit hole drilling solution. These step drill bits are made with global materials and give best in class performance in impact drivers with the versatility to be used in drills. The 1 4 In. hex shank has an optimized SHOCKZONE body providing the industry's most durable shank, reducing early shank breaks. Titanium Aluminum Nitride (TiAlN) coating helps