Features: * Made of fine aluminum alloy and chrome vanadium stainless steel for better durability. *The set includes 1pcs quick spring adapter and 1pcs ph2 bits. * The bit holder is carefully designed, which can hold the bit tightly and firmly. *Delicate and practical, high hardness, firm and strong. *The positioning rod can position the screw and screw for more convenient and accurate. Specification: Product Name: Screwdriver Bit Holder Material: Aluminum Alloy + Chrome Vanadium Steel Color: As Shown Length: (Approx.) 70mm Suitable for: Fixed Drill Quantity: 2 Pcs (Set) Package Included: 1 x Spring Quick Adapter 1 x PH2 Screwdriver Note: 1. Passage: 1cm = 10mm = 0.39 inch. 2. The real color 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. 3. Please allow slight manual measurement deviation for the data.