The symmetric Xform of the 4-cutter drills provides exact and accurate holes and protects the drill bit of damage when it hits armouring iron. Its head construction minimizes the friction in the drilling hole.
Low vibration load of the „hand-arm-system“ by means of significantly reduced vibration. Corresponds to the Directive 2002/44/EC of the European Community for vibration protection.
W2 helix with asymmetrical, shovel-shaped entry grooves and large-volume double hauling flutes
4-cutting edges with one main and two strengthened secondary cutters