This Stanley 28 Piece Screwdriver set includes 21 of the most commonly used screw drivers and also 9 of the most commonly used sockets in a compact and convenient holder for storage. The Bi-material handles are designed for comfort, strength and improved grip to aid in torque transfer to the fastener. They also feature a hanging hole for storage when not in use. The High Alloy Chrome Vanadium shafts are designed for dependable strength and the tips are magnetised.