The Mahi Precision Bit Set includes the iFixit 1/4" aluminum bit holder with a magnetic bit socket, knurled grip, and rotating cap, as well as 48 bits. In addition to the standard Phillips and flat bits, this kit contains all the 1/4" bit types you need to tackle even the toughest and most twisted fasteners during home or workshop repairs. The bit sets are designed for maximum usability: to extend the lifespan of the case, the lid of the bit set is secured with magnets, avoiding wear-prone hinges and closures. While working, the lid can either be conveniently attached to the back of the case to save space or used as an integrated sorting tray for storing screws and components.