Irwin IW2039424 Speedhammer Quad Drill Bit 12.0 x 310mmThis Irwin Speedhammer Quad Drill Bit is designed for efficient drilling. It features a robust construction for durability and performance in demanding applications. Suitable for professional tradespeople and DIY enthusiasts requiring precise hole drilling.Features Quad cutting edge for increased efficiency Hardened steel construction for durabilitySpecifications Brand: Irwin MPN: IW2039424 EAN: 5706915394245 Diameter: 12mm Overall Length: 310mm Working Length: 250mm