General description The IRWIN Speedhammer Quad Drill Bit is designed for drilling precise holes in masonry, stone, and concrete. Its 4-cutter geometry produces more concentric holes for better fixing retention. The full head carbide tip ensures high durability and long service life. A unique bonding system connects the solid carbide head to the 4-flute spiral, providing efficient dust removal and faster drilling. Engineered grooves reduce friction, increasing speed and extending the tool's lifespan. Manufactured in Germany from premium steel, it meets PGM standards for drill bits used for anchor fixing. Technical specifications Diameter: 14mm Overall Length: 310mm Working Length: 250mm Part Number: IRWIW2039428 EAN: 5706915394283 Compatibility and accessories Compatible with SDS Plus rotary hammer drills Suitable for drilling in masonry, stone, and concrete Installation Insert the drill bit into the SDS Plus chuck of your compatible rotary hammer drill Ensure the bit is securely