80 Pc. Ratcheting Bit Driver Set Features: -Designed with ratcheting function for increased speed and efficiency while fastening -Magnetic bit holder for fastener retention -Shank is made of high performance alloy steel for maximum strength and durability -Fixed, forward and reverse locking positions for maximum installation and removal options -Ergonomic dual material improves grip and torque while reducing hand fatigue -Comes with a durable blow mold case for storage and organization Specs: -Size : 1/4 in -Handle Style : Dual Material -SAE/Metric/Torx : Metric -Set Piece Count : 80 -Fastener Size : 1/4