Yato core drill crown for drill stands for impact-free operation – dry and wet – with drill stand (e.g., yt-81980). This allows for fast and precise drilling of holes, even without a tripod, in reinforced concrete, concrete, and silicates, for example, for drilling electrical boxes, pipe and cable covers, or for laying cable trays or ventilation ducts. Laser-welded segments are resistant to overheating from cutting reinforcement bars, even when working dry. The soft cobalt layer on the segment allows for manual drilling under reinforced concrete boxes and exposes the diamond without the use of a tripod. Increased resistance to high temperatures, abrasion, and mechanical damage. 5/4" handle compatible with all tools available on the market. Crown length: 430 mm. Parameters diameter [mm]: 122, length [mm]: 430, holder: 5/4".