About this item

• This set includes six 5/16-inch shank impact screwdriver bits. There are 3 Phillips (2, 3, & 4) and 3 Slotted (5/16, 3/8, & 1/2-inch) in a plastic holder
• S2 High Alloy Steel bits with a protective manganese phosphate finish, the hardest bits available
• Precision-milled tips for exact fit in fastener head
• Universal 5/16-inch hex shanks fit many manual impact drivers
• Use with the KAIFNT K504 Reversible Manual Impact Driver