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 optimal fixing retention. Made in Germany from high-quality steel, it offers excellent durability and long service life. The full head carbide tip and specially engineered grooves enhance drilling efficiency, dust removal, and reduce friction, resulting in faster drilling and increased tool longevity. Technical specifications Diameter: 12mm Overall Length: 460mm Working Length: 400mm Material: Premium steel with carbide tip Standards: Meets PGM standards for anchor fixing Compatibility and accessories Compatible with standard rotary hammer drills and percussion drills Suitable for use with various drill chucks that accept 12mm shank bits Installation Insert the drill bit into the drill's chuck and tighten securely Ensure the drill is set to the appropriate mode for masonry or