This item is really practical if you are drilling guiding holes and then putting in the screws. With it, you will not need to change a bit in the middle of a job again, instead, you can just flip the swivel head. This item can great reduce time from changing the drill bits and really increase productivity. It is a clever, workable gadget that will save you time and annoyance. Features: Made from high quality alloy steel, durable, practical and long service life.Easily switch between drill and drive bits in seconds, never change a bit in the middle of a job again.Select two different size bits, drill your guiding hole, flip the pivot arm, then drive in any screw, nut, or fastener.Comes with 8 cross bits, 8 slot bits and 2 countersink bits which can meet your basic needs.Well packed and assorted in a plastic box for convenient access and storage. Product Features: Easily switch between bits in seconds! Swivel head flips & locks from drilling to driving Works with your own power drill Drilling to Driving in half of the time Set Includes: 1 Half Time Drill Driver 8 Phillips Bits (2 each: PH0, PH1, PH2, PH3) 8 Flathead Bits (2 each: 1/8" 3.2mm, 5/32" 4mm, 3/16" 4.8mm, 1/4" 6.3mm) 2 Countersink Bits ( 3/32" 2.4mm, 1/8" 3.2mm) 1 Allen Wrench Bonus Storage CaseNote:1. Please allow 1-3mm error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.1Made from high quality alloy steel, durable, practical and long service life 2Easily switch between drill and drive bits in seconds, never change a bit in the middle of a job again 3Select two different size bits, drill your guiding hole, flip the pivot arm, then drive in any screw, nut, or fastener 4Comes with 8 cross bits, 8 slot bits and 2 countersink bits which can meet your basic needs 5Well packed and assorted in a plastic box for convenient access and storage