Fits most corded or cordless drills, sturdy inner hex sleeve. 10 different sizes: 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm. The product is easy to install and disassemble, does not fall off easily when in use. Rustproof, non-slip, high occlusion, tight and flexible. Easy installation and strong magnetism: Quick tightening and this magnetism socket set is indispensable with strong magnetism for assembly and disassembly in the private and professional field. Applicable for installation in these hexagonal tools, such as pneumatic screwdrivers , electric screwdrivers, pneumatic drills, electric drills, guns, manual screwdrivers, etc.