Specifications: Diameter [mm]: 6.5 Length [mm]: 101 The EXTREME 2™ drill bits start drilling with contact with the material without the effect of "wandering" on the material. The holes are precise and perfectly even. Diameters of 4.8 mm and above The innovative core of the drill bit is conical in shape and the risk of the drill bit breakage is significantly reduced Non-slip shank with three grinding planes. Diameters of 5.0 mm and above **