GRAFF screwdriver bit PH2x25 mm is a special tip for a screwdriver with an additional base platform. It limits depth of fastener cap bursting, thereby maintaining the strength of fixing material on the base. The bit is made of special S2 cold-formed steel and has hardness of at least 60 HRC. This will eliminate deforming edges in case of unreliable clamp but requires considerable effort during installation works when you use conventional and self-tapping screws with appropriate caps. The bit has a hex shank with hooks on its edges, so that it can be used in any cartridges. Bits are sold in blister packs of 2 pcs.