Drill through the hardest materials with confidence using the Irwin Granite Drill Bit range. Engineered for impact drilling, these bits excel in granite, concrete, and natural stone, offering superior performance over conventional masonry bits. The extra-hard, thicker carbide tip allows for 40% more holes per bit, while rounded cutting edges ensure 50% more accurately sized holes. Experience enhanced durability and precision for all your tough drilling tasks. Product Summary: Irwin Granite Drill Bits, impact drilling, hard materials, granite, concrete, natural stone, high durability, accurately sized holes, power tool accessories.