Compliment your tool collection with the 31-Piece 1 in. Bulk Impact Drive Bit Set. Providing 3X longer life span, this set is created to withstand all your project's needs. The precision-milled bit tip has an enhanced fitment for commonly used fasteners. Included in this set is an impact rated magnetic bit holder for convenience on and off the jobsite. The 1 in. length pairs perfectly with the included magnetic impact rated bit holder. These 1 in. bits are impact rated ensuring their compatibility with impact drivers and drill drivers.