Bormax® WS! Centre point with cutting character. Two in reverse order staggered, grooved main cutting edges (from Ø 11 mm) and one circumferential cutting edge with longitudinal grooves - both effecting that a clear less feed force is necessary. Also they minimizes the friction and the growth of heat. Hexagonal shank for a better power transfer. Rapid drilling in soft wood, European hard wood, chipboard, MDF etc. Top for freehand drilling and stationary use. The low heat development offers an incredibly long service life with highest drilling quality. In combination with extension shanks of product line 1639 perfectly suitable for drilling deep holes.