Very convenient: with keyless design chuck, easily lock the bit or tools with your hands, save time and energy Production Name:1/2 Inch Drill Chuck for 1/2 Inch (2-13mm) Screwdriver, Fits for Drill Bit: 1/5 Inch to 1/2 Inch (2-13mm), Suitable for: Standard Screwdriver : With high precision threaded and sharpened firmly with rust-resistant coated body and electrophoretic enamel coating, it is very durable 3 different handles: these 3 different types of adapter can easily turn your tool into a drill, suitable for multiple connection needs; 1/4 inch hex adapter is for screwdriver, 1/2 inch square socket adapter for wrench and SDS-plus adapter for hammer drill/hammer drill Widely used for heavy-duty drilling work on hard materials such as drills in or stones, Weight: 0.48722159902 pounds, Manufacturer: Rtxbvg