General description This 3-16mm Drill Chuck Adapter is designed for use with impact drivers, electric drills, and hammer drills. It features a capacity range of 3-16mm (1/8-5/8 inch) and a mount thread of 1/2-20UNF. The adapter allows for easy transformation of a power impact wrench into a drill or grinder in seconds, making it a versatile addition to your toolkit. Technical specifications Capacity Range: 3-16mm (1/8-5/8 inch) Mount Thread: 1/2-20UNF Material: Metal Measurement allowed error: +/- 1-3cm Compatibility and accessories Compatible with SDS-Plus bits Includes 1/4 inch hex shank lock key Includes 1/2 inch socket square female adapter Includes hex dandle converter Includes 2pcs 16mm key wrenches Usage The adapter must be used with hammer drill stalls when using the hammer chuck; other stalls may lead to chuck breakage. Note that the product cannot be used counterclockwise. Other information All extensions feature a rust-proof finishing for extended service life. Light