Crafted from high grade steel with machining and rust resistant coating, this socket adapter withstands heavy duty use in construction sites and auto repair shops without bending or breaking Built in auto locking mechanism securely holds bits in place during operations, slippage for home repairs and outdoor projects This 1 / 4 hexagonal shank drill adapter features tool less fast release mechanism for instantly bit changes, boosting efficiency for professional and DIYers who frequently switching attachments during projects The 1 / 4 inch hexagonal drive fits most power tools and accepts various bits / sockets, making it ideal for multiple repair tasks while eliminating the need for multiple adapters yet functional extension design ( 79x70x6.35mm) provides access to tight spaces, perfect for mobile technicians and users, Manufacturer: Xjdzineq