Drill through brickwork, concrete, and breeze block with exceptional speed and efficiency using Irwin masonry drill bits, designed to perform optimally with cordless drills. Experience up to 60% faster drilling than competitors without compromising durability. The innovative single flute design enhances drilling speed by facilitating rapid dust removal. Featuring a unique, pressed diamond-ground carbide tip, these bits deliver aggressive cutting performance and boast a 20% longer lifespan compared to previous Irwin models. The robust chrome vanadium body with high carbon content ensures maximum hardening and superior rupture strength for a longer-lasting, stronger bit. Summary: Irwin masonry drill bits, fast drilling, brick, concrete, breeze block, cordless drill compatible, durable, single flute, dust removal, diamond-ground carbide tip, aggressive cutting, longer life, chrome vanadium body, high carbon content, rupture strength.