Description Features: Universal hex shank, each set has 3 different size designs: 1/4- inch, 3/8 inch and 1/2 inch, you can choose the appropriate size of tool to use. Made from stainless steel, which greatly improves the strength and abrasion resistance of the workpiece. Uses unique design that distributes torque- loads evenly over a greater surface- area, so it allows for reaching more narrow workplace and improve use performance significantly. This tool is light weight and small size which means- it saves space. No need to carry bunches of sockets. The chamfered edges and spring-loaded detent square will ensure a tight and secure fit, thus allowing you to save your precious time- and perform auto repair tasks easily. Specifications: Material: stainless steel Note: Please allow 1-3cm error due to manual measurement. please make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 3xDrill Sockets Adapter