Fits most corded or cordless drills, sturdy inner hex sleeve. 10 different sizes: 6mm, 7mm, 8mm, 10mm, 12mm, 13mm, 14mm, 15mm, 17mm, 19mm. The product is easy to install and disassemble, not easy to fall off when using. Rustproof, non-slip, high occlusion, tight and flexible. Easy installation and strong magnetism: Quick clamping and this magnetism socket set is indispensable with strong magnetism for assembly and disassembly in the private and professional field. Applicable for installing in those hexagonal tools, such as air screwdrivers, electric screwdrivers, air drills, electric drills, guns, hand screwdrivers, etc.