Bosch 9 Piece S Extra Hard Screwdriver Bit Set

The Bosch 9 Piece S Extra Hard Screwdriver Bit Set is a Pozidriv bit set designed for universal screw-driving with screwdrivers and drill drivers. It covers PZ1, PZ2 and PZ3 sizes, so it suits general fastening work where a reliable all-round set is needed. Each bit is made from S2 Modified Steel and put through an optimised heat treatment process, giving extra-hard quality. The tapered torsion zone absorbs force and vibration during screw-driving, helping the bit cope with torque peaks. The 1/4-inch external hex shank gives a strong connection and maximum torque transmission in three-jaw chucks and 1/4" internal hex tool holders. The set includes extra PZ2 bits, along with a QC UH.