Cavity wood drills

Drills from carbon steel used especially for drilling into boarding  and  insulation  materials. Suitable for formwork, interior fitting work, sanitary area, heating installation, electrical installation, also for metals, for example sandwich material with steel, aluminium or profiled sheeting, wood, plasterboard, light building materials, insulation. The drilling and clamping parts are joined with a small thread and are glued together. Resistant to strong strain. Taper transition between a drill and a clamping part enables easy tool´s removal from a drilled hole.