Description: Fit for tighten bolts screw, easily switch between bits within seconds Swivel head flips&locks from drilling to driving It can work with your own power drill, drilling to driving in half of the time Select two different size bits, drill your pilot hole, flip the pivot arm, then drive in any screw, nut, or fastener Includes 8 Phillips bits, 8 slot bits and 2 countersink bits in a plastic box, meeting different demands Specification: Material: High Speed Steel Box Size: Approx. 195x78x43mm/ 7.68x3.07x1.69 inch Includes: 1pcs Half Times Drill Driver, 8pcs Phillips Bits(Two of every: PH0,PH1,PH2,PH3), 8pcs Flathead Bits(Two of every: 1/8" 3.2mm,5/32" 4mm,3/16" 4.8mm,1/4" 6.3mm), 2pcs Countersink Bits(3/32" 2.4mm,1/8" 3.2mm), 1pcs Allen Wrench. Packaged in a blow box. Package Includes: 1 Pieces of Half Times Drill Driver 8 Pieces of Phillips Bits(2 each: PH0,PH1,PH2,PH3) 8 Pieces of Flathead Bits(2 each: 1/8" 3.2mm,5/32" 4mm,3/16" 4.8mm,1/4" 6.3mm) 2 Pieces of Countersink Bits(3/32" 2.4mm,1/8" 3.2mm) 1 Pieces of Allen Wrench 1 Piece of Box