Description:Turn Square Head Handle Hexagonal Belt Extension Sleeve Beaded 1/4 3/8 1/2 Sleeve Wind Party Connection Electrical Switch Lever. Length 50mm. Turns any electric drill into a socket screwdriver strong spring ball bearing keeps the sockets securely in place, the sockets snap firmly and do not slip off. Constructed of rust-resistant chrome vanadium stainless steel for long life handles for the heaviest work hexagonal shaft saves time changing from an electric drill to save time compared to traditional manual nut drivers. Hardened and treated chrome vanadium steel alloy for superior strength and durability prevents stripping during high-speed operation. Specification:Name: 3 pcs Steel Ball HandleMaterial: Chrome Vanadium Stainless Steel Color: BlackLength: 50mmSize: 1/2(12.7mm),1/4(6.35mm),3/8(9.5mm)(Approx.)Application: Suitable for Screwdriver Holder or Electric Screwdriver Tool Quantity: 3pcsPackage Included:1*1/4 inch Car Driving1*3/8 inch Car Driving1*1/2 inch Car DrivingNote:1. The actual colors of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.2. Please allow slight manual measurement deviation for the data.