This listing features a high-quality ROHM Drill Chuck and Craftsman Keyless Chuck that can hold drills ranging from 1/64 to 3/8 inches with a 3/8-24 threaded mount. The Kohn chuck is made in Germany Crafdtsman made in USA both are suitable for various applications. The chuck types included are key(no key included) and keyless for your convenience. The mounting size is 3/8-24, and the mounting type is threaded mount. The brand of the chucks is ROHM and Craftsman. The listing is under the categories of Drill Chucks, Chucks, Workholding, Workholding & Toolholding, CNC, Metalworking & Manufacturing, and Business & Industrial.