【High Quality Material】: The drilling adapter is made of high quality material, which is sturdy and durable after fine processing and strict process treatment, ensuring a long service life. 【Specifications】: Model: 1/2--20UNF, all plastic chuck + 1/2 threaded joint, clamping terminal size: 2--13mm, weight: 260g. 【Main function】: This drill chuck is mainly used to convert the impact wrench to have a larger clamping force. 【Easy to install and remove】: Provides drill chuck adapter, easy to install and remove, securely connect drill chuck and impact wrench. 【Precision Thread】: The precision thread of the drilling adapter ensures a solid and stable connection and is suitable for many types of drill bits., Weight: 0.5842249943 pounds, Manufacturer: DEWIN