General description 0.8 mm-10 mm keyless drill chuck designed for electric drills, featuring a 3/8 inch thread. This drill chuck is engineered for durability and reliability, making it an essential tool for various drilling tasks. Technical specifications Drill chuck size: 0.8 mm - 10 mm Thread size: 3/8 inch Other information After heat treatment, the product exhibits good toughness and superior structural strength. The rear sleeve includes a locking plate to effectively prevent the workpiece from loosening, ensuring reliable clamping when tightening the tool. The metal texture is of high quality, and the coating provides a comfortable grip. The unique stopper converts the torque exerted by the handle into a higher clamping force.