1. It is perfect for impact drivers or drill bits, allowing you to replace the ratchet with a power tool. 2. Sockets can be securely held with the spring loaded ball bearing on head. 3. The 1/4in hex shank fits all quick-change chucks as well as standard drill chucks. 4. These adapter will make your work more convenient and labor-saving. 5. The square head position anti-off ball cage design, the sleeve is more firmly installed, not easy to fall off and safe to use. 6. Made of high quality chrome vanadium steel material, high strength, abrasion resistance and . Specification: Condition: 100% Brand New Item Type: Socket Bit Adapter Material: Chrome Vanadium Steel Color: As Pictures Shown Optional Type: Type A, Type B, Type C Type + Length: (1/4in hex shank to 1/4in socket) Socket Adapter, Length: 65mm / 2.6in (1/4in hex shank to 3/8in socket) Socket Adapter, Length: 65mm / 2.6in (1/4in hex shank to 1/2in socket) Socket Adapter, Length: 72mm / 2.8in Product Usage: It is used to install on the hex tool sleeve with pneumatic screwdriver, electric screwdriver, air drill, electric drill, manual screwdriver, etc. The original hexagonal size can be converted to square head size, so that It is used for the installation of sleeves, etc. It is a good accessory for conversion. PackageList: 1 x 1/4in Hex Socket Adapter 3pcs (one1/4in adapter, one 3/8in adapter, one 1/2in adapter)