Features 3D Spiral Bit 14 mm - 3D Cutting Edge - Hammer Drilling - HST Hardened - Twin Max Flute - Low Vibration. Particularly high drilling speed through optimized tip geometry with aggressive cutting edge profile and large carbide tip angle. Patented (WITH PRINCIPLE) cutting edge design and strengthened carbide with double centering points guarantee extreme high durability. Particularly comfortable and vibration-reduced drilling owing to the innovative Twinmax-3D spiral design which provides optimal removal of drill dust. Rounded cutting edges provide extreme robustness and low probability of breakage even during reinforcement impacts. Certified by the Masonry Drill Bit Testing Association (PGM) according to the requirements of the German Institute for Building Technology (DIBt). Size / 14X100X160 mm