Irwin Diamond Drill Bit 8mm Cylindrical

The Irwin Diamond Drill Bit is an 8mm cylindrical masonry drill designed for fast, clean drilling through concrete, brick, and stone without chipping or cracking. The diamond-tipped design delivers superior durability and extended tool life compared to standard tungsten carbide bits, making it ideal for electricians, construction crews, and facilities managers working on wall-mounted installations and cable routing.