About 1/4" Screwdriver Bit Extension/Adapter Kit. Ideal for 1/4" quick change chuck systems or drop-in drill chucks. Turn any power/cordless drill into a power outlet wrench. Easy to quickly screw in nuts, bolts, fasteners, etc. . Spring-loaded ball bearings in the head hold the socket securely. Widely used in home DIY, woodworking, auto parts, professional machine maintenance, etc. All standard 1/4" hex shank sockets. Suitable for use with drills and impact drivers. Not suitable for use with air tools and Due to tool construction, avoid wet environments. Please use Wipe away moisture and store in a dry and ventilated place to extend tool life. 360-degree range of motion - With the 360-degree swivel mechanism, you can reach any difficult place. Spring-loaded ball system - securely attaches your impact socket to your power tool. Convenient Organizer Box - Holds the adapter 360 degree socket neatly in the tool In a drawer. Versatility - Use with any cordless drill or high torque hammer drill and it won't bounce! Durability - Our swivel joints are made of industrial grade heat treated CR -Constructed from V-steel for maximum durability. Perfect for Professionals - Our Safety Swivel Hex Handle Socket Adapter is perfect for auto repair, home improvement, home maintenance, and even DIY projects. p> < p>Surface Treatment: Chrome Plated Shaft Diameter: 1/4 Hex Shank Square Head: 1/4 (6.35mm), 3/8 (9.5mm), 1/2 (12.7mm) Lengths: 52mm, 55mm, 59mm Includes Dimensions: 1/4 Hex Drive "x 1/4"< /p> 1/4" x 3/8" Hex Driver 1/4" x 1/2" Hex Driver Material: Chrome Vanadium Steel Color: Black