Laser-welded diamond core bit, top of the range for wet use on stand-mounted core drills with a 1/2 Gas motor connection. The spiral design significantly speeds up drilling by helping to clear the cuttings out of the hole, which would otherwise tend to cause the bit to jam during use. It is ideal for professional users who want no surprises on site and always demand maximum performance. Core bits can be re-tipped on request, but only using the brazing system.