Description:1. Fast dust removal provided from 2-flute design, for impact drill.2. Carbide-tipped drill bit head is harder and tougher to extreme loads. Optimized brazing and hardening process for long life.3. Optimized flute design to reduce bit stress and make the bit run cooler, long life.4. Centric tip for optimal hole geometry and provides rounder holes. For use in drill requiring Special Direct System shank.5. Designed for fast drilling in concrete, masonry, artificial stone, and rock.Specifications: Diameter :25mm / 1.0"Total Length : 350mm / 13.78"Useable Length : 255mm / 10"Shank Size : 10mm / 0.39"Special Shank : for Impact DrillTip Material: CarbideBody Material : Chrome-Vanadium SteelType : N Type 135 degreeHardness (HRC): 52-60Package: 1 x Masonry Drill Bit