Features: The hexagonal head design improves handling and maneuverability, making it easier to work in tight spaces. Make of alloy steel, it can achieve durability and support in daily use, so as to quickly switches tasks and maintain stable work. Comfortable large spherical handle, nonslip design, easy to operate by hand. Press to release the-up drill bit and realize quick replacement in second. 1/4inch hexagonal handle: suitable for clamping electric drill chucks without quick function. The clamping diameter of chucks must be greater than 6.35mm. The quick connector can be used for charging drill, electric drill and electric tool. It can be used for deck construction, wood frame, plywood floor, building crates. Specifications: Component: Alloy Steel Size: about 60x23.2mm/2.36x0.91inch Hexagonal Head diameter: 1/4inch (6.35mm) Package Includes: 1pc Drill Bit Converter note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.