Feature: 1. Bolts Loosen: Impact screwdriver helps you loosen bolts and rebel fasteners easily and quickly. A great tool in your toolbox to help save time. 2. 6 Impact Screwdriver Bits: This impact screwdriver bit contains 6 replaceable bits and good convenience for replacement. 3. Non Slip Thread: This impact screwdriver kit is with fine and regular non slip thread. Comfortable grip, anti slip, so you will have the great working efficiency. 4. Chrome Vanadium Alloy Steel: This impact screwdriver kit is forged with chrome vanadium alloy steel, can withstand large impact loads. 5. Head Treated: The bottom of this impact screwdriver is specially heat treated to resist tapping. Robust and practical. Specification: Item Type: Impact Screwdriver Material: Chrome Vanadium Alloy Steel Size: Approx. 17 x 4 x 4cm / 6.7 x 1.6 x 1.6in Use: Special screwdriver to rotate the bolt by tapping to produce a large torsion. Package List: 1 x Drive Impact Screwdriver1 x 8x35mm Screwdriver Bit 1 x 8x35mm Screwdriver Bit 1 x 8x70mm Screwdriver Bit 1 x 8x70mm Screwdriver Bit 2 x 8x70mm Screwdriver Bit