Reversible Impact Driver: Impact screwdriver set loosens rusted screws and nuts using hammer-driven force for automotive and repair work. 3/8in Drive Output: Accepts included drill bit set for impact driver and sockets to handle stubborn fasteners during maintenance tasks. Chrome Vanadium Bits: Hand impact driver provides strength and wear resistance using durable steel for repeated impact use 4 Bit Assortment: Impact driver bit set covers common fastener sizes with #2, #3, 5/16in, and 3/8in bits for versatility. Storage Case Included: Keeps driver and bits organized in a plastic case for transport and storage.