Features The product is easy to be installed and dismantled, not easy falling off when it was using. Anti rust, anti slip, high occlusion, tight and flexible. Sandblasted, heat treated chrome vanadium steel. 1/4" Shank fits most powered corded or cordless drills. It is applicable for installing in those hexagon tools, such as pneumatic screwdriver, electric screwdriver, pneumatic drill, electric drill, pistol drill, manual screwdriver, etc. It is widely used in scene of household DIY, auto parts, woodworking, professional machine repairing, etc. Specifications: *Material: steel/chrome vanadium steel *Color: gray silver *Package specifications: 9PCS:5mm,6mm,7mm,8mm,9mm,10mm,11mm,2mm,13mm 14PCS:3/16(4.76mm),1/4(6.35mm),9/32(7.14mm),5/16(7.93mm),11/32(8.73mm),3/8(9.53mm),7/16(11.11mm),5mm,5.5mm,6mm,7mm,8mm,10mm,12mm *Tool holder diameter: 6.35mm/0.25inch hexagon tool holder *Purpose: Screwdriver, Nut, Screwdriver, Sleeve Bit Package Content: 1x 9pcs Screwdrivers (5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm) 1x 14pcs Nut driver socket bits (3/16", 1/4", 9/32", 5/16", 11/32", 3/8", 7/16", 5mm, 5.5mm, 6mm, 7mm, 8mm, 10mm, 12mm) Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data. Made of high quality material, durable and practical to use. Perfect functions,give you a wonderful experience. Every customer can enjoy 30 days refund or replacement for Damaged/Quality Issues. If you have any questions, please feel free to contact us, we will solve it for you. High-Quality Steel Screwdriver Nut Socket Bits Set - Multiple Sizes For Various