Convenient and long lasting. Easily switch between bits in seconds. The swivel head turns and locks from drilling to driving. Works with your own electric drill. Well packaged and assorted in plastic box for convenient access and storage. Features: Color: Silver Material: chrome vanadium steel The set includes: 1 half-time drill 8 Phillips bits (2 each: PH0, PH1, PH2, PH3) 8 flathead bits (2 each: 1/8 '', 5/32 '', 3/16 '', 1/4 '') 2 countersink bits (3/32 '' 2.4 mm, 1/8 3.2 mm) 1 Allen key Half-time drill size: approx. 14.6 * 1.7cm / 5.7 * 0.6inch Length of flat head bits: approx. 5cm / 1.9in Package size: approx. 19 * 7 * 4cm / 7.4 * 2.7 * 1.5inch Package weight: approx. 370g / 13oz List of packages: 1 * drill bit holder 8 * Phillips bits 8 * flat head bits 2 * countersink bits 1 * hex socket wrench 1 * storage box