Loosens hard-to-turn screws, bolts or nuts Handle design prevents possibility of hitting hand with hammer when striking impact driver Bit holder has 3/8" drive and 5/16" hex for Phillips and flat screwdriver bits Includes eight screwdriver bits Easy to use Includes eight screwdriver bits: No. 2 Phillips bit, 1-3/8" long with 5/16" hex, No. 2 Phillips bit, 3-1/8" long with 5/16" hex, No. 3 Phillips bit, 1-3/8" long with 5/16" hex, No. 3 Phillips bit, 3-1/8" long with 5/16" hex, 5/16" wide x 1-3/8" long with 5/16" hex slotted bit, 5/16" wide x 3-1/8" long with 5/16" hex slotted bit, 3/8" wide x 1-3/8" long with 5/16" hex slotted bit, 3/8" wide x 3-1/8" long with 5/16" hex slotted bit.