Description:● The Bit Adopts The Imported High-speed Steel Material, Coated With Titanium, Greatly enhanced The Hardness, More Resistance In Abrasion Deformation.● Refined Aluminum Alloy Handlebar. Specification:● Screwdriver Bit Length: 44mm● Screwdriver Bit Diameter: 4mm● Handlebar Length: 76mm● Handlebar Diameter: 12.5mm Packaging:● Socket Drivers Bits x 1