The Wiha precision slotted screwdriver features a proportional handle to blade size for optimum torque. Handle is made of high-quality, cadmium-free plastic and is molded on for a permanent bond to blade. Tapered, faceted shape allows rapid rotation. - Fingertip rotation cap for precise turning and control. Chrome-vanadium-molybdenum tool steel blade with corrosion protective vapor chrome finish is thru-hardened for wear resistance. Exact-fit precision CNC machined tips.