DescriptionAdopt source material, provide superior torque for greater turning power with mirror surface polished. Widely used in mechanical maintance, repair, car fix and repair. It can insert smoothly into fasteners and protect both bits and fasteners from damaged edges.Feature-Color: black - Material: steel. - Size: 7.5 x 7.5 x 1.5cm. - Adopt metal source material, durable, high hardness, large torque, strong and long service life. - Widely used in mechanical maintance, repair, car fix and repair. - Unique shape design make you tightly and use it more easily. - Four Head Drill Chuck Key, suitable for most drills and power tools. - You can use it for tightening or loosening chuck.
