Features:

Heat treated chrome vanadium steel, Anti rust, anti slip, flexible.
Anti rust, anti slip, flexible. Mounted on a black clip, easy to use and storage.
Applicable for installing in those hexagon tools, such as pneumatic screwdriver, electric screwdriver, pneumatic drill, electric drill, pistol drill, manual screwdriver, etc.
It's widely used in household DIY, auto parts, woodworking, professional machine repairing, etc.
 

Specifications:

Material: chrome vanadium steel
Shank diameter: 1/4 inch(6.35mm)
Total length: 38mm
Shank length: 20mm
Socket diameter:
SAE: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) (7 pcs)
Metric: 5mm, 5.5 mm, 6mm, 7mm, 8mm, 10mm, 12mm (7 pcs)
Quantity: 1 Set (14pcs).
 

Package included:

1 Set (14pcs) Power Nut Driver Bits Socket.