Slotted screwdriver set for precision mechanics for fine screw work in fine mechanics and crafting high quality precision screwdrivers with hardened tips of nickel chrome molybdenum steel with black tips and colored rotating caps cross hatch sizes h000 ph00 ph0 ph1 pz0 pz1 the blade length is 40 mm and the handle is 100 mm long the set is delivered in a re sealable plastic box