Center drill. Active center for cutting into concrete. Durable carbide with fine grain size. Long lifespan and excellent resistance. 2-cutter design with AWB soldering and hardening process. Diameter-optimized soldering and hardening technology increases the robustness of the drill and reduces vibrations during drilling. Diamond-ground cutting edges enable versatile drilling. The 4-spiral Dura design features a reinforced core diameter for greater durability and stability when drilling into concrete. Suitable for various interior materials such as concrete, masonry, brick, eternit, lightweight materials, multilayer materials, ceramics and tiles, wood, plastic, metal sheets, and aluminum. Optimal results for rotary and impact drilling. Drill color: blue, lightly ground. Pack of 1 piece. Dimensions: 7 x 60 x 100 mm, diameter 6.5 mm.