9/14Pcs Set Nutdrivers Nut Driver Metric 1/4" Hex Shank CRV Screwdrivers Nutdriver Socket Bit Power Tools 5-13 mm

[Features]: 1. Heat treated chrome vanadium steel, Anti rust, anti slip, flexible 2. Mounted on a black clip, easy to use and storage. 3. Power Nut Driver Set fits both standard and metric nuts 4. These drivers work GREAT in cordless drills to quickly unscrew or screw nuts and bolts. 5. 1/4" Shank applicable for installing in those hexagon tools, such as pneumatic screwdriver, electric screwdriver, pneumatic drill, electric drill, pistol drill, manual screwdriver, etc. 6. It's widely used in household DIY, auto parts, woodworking, professional machine repairing, etc. [Name]: Strong inner Hexagon sleeve (without magnetic) [Material]: Forged and Hardened, Chrome Vanadium Steel construction [Shank diameter]: 6.35mm(1/4 Hex shank) [Length]: Shank length about 22mm, total length about 37mm (Different model, size is not the same) [Socket diameter]: 9Pcs: 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm . 14Pcs: 5mm, 5.5 mm, 6mm, 7mm, 8mm, 10mm, 12mm 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).