General description The IRWIN Speedhammer Quad Drill Bit is designed for drilling precise plug and anchor holes in masonry, stone, and concrete. Its 4-cutter geometry ensures a more concentric hole, providing better fixing retention. The full head carbide tip offers high durability and long service life, while a unique bonding system connects the solid carbide head to the 4-flute spiral, enabling faster and more efficient dust removal. Specially engineered grooves reduce friction, increasing drilling speed and extending the tool's lifespan. Manufactured in Germany with premium steel, it meets PGM standards for anchor fixing applications. Technical specifications Diameter: 12mm Overall Length: 160mm Working Length: 100mm Material: Premium steel with carbide tip Compatibility and accessories Compatible with standard rotary hammer drills and percussion drills Suitable for use with various drill chucks Installation Insert the drill bit into the drill chuck and tighten securely Select