Bormax® WS, centre point with cutting geometry, two offset fluted main cutting edges and the serrated peripheral cutting edge with longitudinal grooves require significantly less feed force and minimize friction and the resulting heat development, hexagonal shank for better power transmission, rapid drilling in softwood, European hardwood, chipboard, MDF boards etc., Tip for freehand and stationary use, incredibly long service life with maximum drilling quality due to very low heat generation, for ø over 40 mm we recommend the 1614 Bormax® WS prima long series, ideally suited for deep-hole drilling in conjunction with the 1639 extensions