Symmetrical 4 cutter geometry (4x90 degree) Perfect round holes for optimal anchor fitting. 4 flute geometry. The high volume 4 flute geometry ensures the optimum removal of dust and debris. Centering tip for easy spot drilling with pinpoint accuracy. Enhanced rebar guards for an improved resistance when hitting rebar. 4 breaker points pulverize material more efficiently and allow the bit to be up to 20 per cent faster than the competition. Contains: plastic container, 5.5 x 110 mm and 5.5 / 6 / 7 / 8 x 160 mm.