General description Used most often in the automotive and aerospace industries, this 20-piece screwdriver bit set emphasizes the optimum weight-to-strength ratio, ensuring reliability and accessibility in production environments. The set is designed for the insertion and removal of fasteners and fixings using 1/2in. square drive tooling. The unique knurled body of the bit provides extra grip, essential for quick tool changes when hands are greasy or oily. Constructed from chrome vanadium steel with a chrome-plated mirror finish, this set is built for durability and longevity. All bits feature a ball retaining groove on each face of the square drive for a secure lock with fasteners. The set is supplied in a robust plastic case for easy storage and transportation. Technical specifications Bit Type: Phillips, Pozidriv, TX, Crosspoint, Slotted Drive Size: 1/2in. Drive Type: Square Finish/Coating: Chrome-plated Material: Chrome Vanadium Steel Number of Pieces: 20 Overall Length: 55mm