48-20-9058 For Milwaukee 10Pc. Shockwave Impact Duty Carbide Hammer Drill Bit Kit Enhance your drilling performance with 10pc. Impact Duty Carbide Hammer Drill Bit Kit. Engineered for durability and efficiency, these carbide bits deliver up to 5x longer life in concrete and up to 2x faster drilling into masonry materials. The precision ground tip ensures faster starts and less walking in concrete, brick, and block, making these bits ideal for a variety of applications.