Irwin 16-Piece Power Screwdriver Bit Set

Ideal for cordless screwdrivers and drills, variable speed drills and screw guns. All-hard bits for heavy-duty use. Popular mix handles most screw and nut-driving applications. Set includes 1" insert bits: (1) #1Phillips, (2) #2 Phillips, (1) #3 Phillips, (2) #2 Square Recess, (1) 8-10 Slotted; Nutsetters: (1) 1/4", (1) 5/16", (1) 3/8"; 2" Power Bits: (2) #2 Phillips, (1) #2 Square Recess, (1) 8-10 Slotted, (1) 6-8 Slotted; (1) 2-1/4" Magnetic Bit Holder.