ITEM NAME:20-piece drill bit high-speed screwdriver head drill driver kit alloy steel W3A5 20-piece drill bit high-speed screwdriver head drill driver kit alloy steel W3A5 feature: Easy to switch bits in seconds Alloy steel material Rotate the head to flip and lock from drilling to driving Work with your own electric drill Drill driving in half the time Choose two different sizes of drill bits, drill guide holes, flip pivot arms, and drive any screws, nuts or fasteners 8 Phillips positions, 8 slots and 2 countersunk bits to meet your basic needs Packed and sorted in plastic boxes for easy access and storage Color: Silver & black Material: Tool Steel 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 Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm..2 Countersink Bits ( 3/32" 2.4mm, 1/8" 3.2mm). Choose two different sizes of drill bits, drill guide holes, flip pivot arms, and drive any screws, nuts or fasteners. 1 Allen Wrench. Work with your own electric drill.