Features Secure Socket Retention: Spring-loaded ball bearing design ensures that sockets are held securely in place, providing reliable performance during heavy-duty tasks Versatile Tool Compatibility: This kit easily attaches to your impact driver or drill, allowing you to convert your hand socket set into a driven socket set for maximum efficiency Durable and Reliable Construction: Each adapter is quenching heat-treated for enhanced sturdiness and wear resistance, ensuring long-lasting use even under demanding conditions Effortless Socket Changes: Quickly and easily switch between sockets with this extension bar adapter, reducing downtime and increasing productivity on your projects Comprehensive 3-Piece Set: Includes 3 essential sizes to cover a wide range of applications, making this socket adapter set a must-have for any toolbox or workshop Features: 1、Spring loaded ball bearing on head holds sockets securely 2、This kit is applied to your impact drive or drill bit, and allows you to replace the ratchet with an electric tool 3、Each has been quenching heat treated, sturdy and wear resistant 4、Change your hand socket set into a driven socket set 5、This set is for your impact driver or drill Specification: Features: Spring loaded ball bearing on head holds sockets securely. This kit is applied to your impact drive or drill bit, and allows you to replace the ratchet with an electric tool. Each has been quenching heat treated, sturdy and wear resistant. Change your hand socket set into a driven socket set. This set is for your impact driver or drill. The 1/4 inch hex shank fits all quick change chucks as well as standard drill chucks. Specification: Material: Chrome-vanadium steel Colorful circle: aluminum alloy Hex Shank:1/4" (6.35mm) Quantity:3 The hexagon handle can be converted to square head Type: 1/4*1/4*65mm:1/4"hex shank- - 6.35mm square head 3/8*1/4*65.8mm:1/4"hex shank- - 9.4mm square head 1/2*1/4*68mm:1/4"hex shank - -12.6mmsquare head Package Included: 3 x Screwdriver Extension Bar Adapter Package List