Details:* Made of chrome vanadium steel, general induction hardening, not easy to wear.* Suitable for internal hexagonal sockets.* Useful for operating electronic device, ideal for electrician, mechanic and repair work.* Material: Chrome vanadium steel stainless steel * Color: As pictures show * Tip Type: PH1,PH2,PH3,PZ1,PZ2,PZ3* Square Socket Diameter: 6.35mm/1/4" (Approx.) * Overall Length: 38mm (approx)* Quantity: 6 piecesPackage contents:6x Screwdriver BitNote:1. The actual colors of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.2. Please allow slight manual measurement deviation for the data.