Pachmayr's screwdriver set provides all the bits needed by gunsmiths and all those who work on firearms. This complete set comes with bits for slotted screws, hex screws, 6-lobe screws, and Phillips screws. in addition to an assortment of specialty bits. The specialty bits include a Weaver scope ring bit, Glock front sight bit, 1911 grip Bushing bit, as well as .062", .093" and .118" pin punches. The set also includes a ratchet wrench so the maximum torque can be applied to those tough-to-remove screws. The bits for slotted screws are hollow ground, so they properly fit screw slots and prevent cam-out which creates ugly, damaged screw slots. The set is packed in a compact, convenient storage case..