General description The Irwin Speedhammer Quad Drill Bit is designed for drilling precise plug and anchor holes in masonry, stone, and concrete. Its four-cutter geometry ensures a more concentric hole, providing better fixing retention. The full head carbide tip offers high durability and long service life, making it ideal for demanding applications. Technical specifications Diameter: 12mm Overall Length: 310mm Working Length: 250mm Material: Steel with carbide tip Manufacturing country: Germany Compatibility and accessories Suitable for use with rotary hammer drills and percussion drills compatible with SDS-Plus or similar systems Compatible with standard masonry drill accessories Installation Insert the drill bit into the drill's chuck or SDS system Ensure the drill is set to the appropriate speed and torque for masonry drilling Begin drilling at a steady speed, applying moderate pressure for optimal results Usage Use in masonry, stone, and concrete surfaces Ideal for creating holes