Product description: For drilling in reinforced concrete, masonry, and lime sandstone with Ø 350 mm boreholes and a usable length of 430 mm with a thread connection of 1 1/4" UNC (standard). Application advantages: Space Welding - cold welding process using the latest connection technology. Utilization of the entire diamond segment without loss due to neutral zone. PRISMACUT: Four drilling lenses on the diamond segment improve the drilling behavior and simultaneously ensure optimal water cooling. Exact roundness reduces wear. Very cutting-friendly for secure cutting initiation. Area of application: For drilling in reinforced concrete, masonry, and lime sandstone with Ø 350 mm boreholes and a usable length of 430 mm with a thread connection of 1 1/4" UNC (standard).