14 pcs Metric Drill Bits Driver Nut Tools Socket Wrench Screwdriver 5mm-12mm Hex Drill Bits, Fits Most Corded or Cordless Powered Drills, Strong Interior Hexagon Sleeves. This nut-free magnetic tools. hex-shank Length: approx. 2.2cm, rod diameter: 6.35 mm. Power bit key (inch): 3/16inch, 1/4inch, 9/32, 5/16inch, 11/32inch, 3/8inch, 7/16inch; powerful nutdriver bits (metric): 5mm, 5.5mm, 6mm, 7mm, 8mm, 10mm, 12mm. Heat treated chrome vanadium steel, rustproof, non-slip, flexible. Rustproof, non-slip, flexible. Mounted on a black clip, easy to use and storage. Applicable for installation in these parts, tools such as pneumatic screwdriver, electric screwdriver, pneumatic drill, electric drill, drill gun, manual screwdriver , etc It’s widely used in household DIY, auto parts, woodworking, professional machine repairing, etc. Specification: Material: chrome vanadium steel Shank length: about 2.2cm. Stem diameter: 6.35mm Socket diameter: SAE: 3/16inch, 1/4inch, 9/32, 5/16inch, 11/32inch,