MILWAUKEE® Carbide Impact Drill Bits use honed carbide, delivering up to 5X life in concrete and up to 2X faster drilling. Featuring a precision-ground tip, these bits deliver faster starts and less walking in concrete, brick, and cinder block. Their wide flute clears dust faster, reducing heat and allowing more holes to be drilled per charge. These bits feature a 3-point shank for better grip and control. The extended life of MILWAUKEE® Carbide Impact Drill Bits makes them ideal for use with corded and cordless impact drills in concrete, brick, and cinder block.