This square hex shank connector turns any power drill into a heavy duty, spring loaded bearing, nut driver that holds sockets securely in place, with sockets ping in and not slipping. Hex Shank, 1/4" Overall Cutting Spec. Suitable for screwdriver handle or power screwdriver tool drive sleeve. Features: Square to hex shank connector, 50mm length, 1/2"(12.5mm), 3/8"(10mm), 1/4"(6.3mm) connector. Made of chrome vanadium steel, suitable for powerful impact drivers. Spring loaded bearing on the head holds sockets securely. Fits 1/4" quick release systems or directly into the chuck. Replace your manual socket with a piloted socket (HEX converts to square head). This set is perfect for your impact tool or drill and allows you to replace your ratchet wrench with a power tool. These impact resistant adapters are designed for the most demanding applications (2000 lb/ft of torque). 1/4" hex shank fits all quick-change chucks as well as standard chucks. Hex shank saves time by replacing the power drill compared to traditional hand screwdrivers. Hex shank hardened and treated for superior strength and durability prevents stripping during high-speed drilling. After installing the original hex size can be converted to square head size, so use to install the sleeve. Features: Material: CR-V Length: 50mm Size: 1/4" to 1/4" hex shank, 3/8" to 1/4" hex shank, 1/2 to 1/4 Package size: 10 * 7 * 1.5cm / 3.93 * 2.75 * 0.59in Package weight: 70g Note: The color of the item may show sight aberration due to the different shooting light and monitor display. Packing list: 1 * 3pcs 50mm Socket Adapter