This 11mm diameter, 160mm length irwin masonry drill bit provides heavy duty drilling capability for substantial fixings in brickwork, concrete and breeze block, ideal for larger wall plugs and heavy duty applications. Designed specifically for fast and efficient drilling with cordless drills, this bit delivers up to 60% faster drilling than competitive drill bits whilst maintaining exceptional durability. The single flute design ensures faster dust removal for increased drilling speed, whilst the unique pressed diamond-ground carbide tip allows for aggressive cutting action. The carbide tip design ensures 20% longer life compared to previous irwin masonry drill bits. The chrome vanadium body with high carbon content allows more hardening, creating a stronger bit with maximum rupture strength for demanding trade applications. Features and benefits: 11mm diameter for heavy duty substantial fixing applications 160mm length ideal for extended reach applications up to 60% faster drilling performance than competitive alternatives single flute design for faster dust removal at depth pressed diamond-ground carbide tip for aggressive cutting 20% longer life than previous irwin masonry bits chrome vanadium body for maximum rupture strength specifications: diameter mm : 11 working length mm : 160 overall length mm : 105 pack qty.: 1 Total length: 160mm.