The IRWIN Speedhammer Plus Drill Bit is designed for SDS drilling, offering exceptional speed in brick, block, masonry, concrete, and granite. Its patented, unique single flute design ensures efficient dust removal and lower vibrations, with 28% greater capacity for more effective waste removal. The extra-short drill bit head takes 80% of the workload, providing higher durability and speed. It clears drilling dust directly into the flute, reducing clogging. With 25% more tungsten carbide for extra strength, it drills 25% faster than competitive bits while maintaining high durability. It also features more aggressive cutting angles and self-centering for faster drilling. This bit is suitable for professional use, features a tungsten carbide tip for strength and durability, and fits all machines with SDSplus or Hilti-chucks. Specially designed flutes ensure fast and efficient dust removal, and TMS treatment provides stress relief for superior strength. Specifications: Diameter: 5.5mm. Total length: 110mm. Working length: 50mm.