The Hougen 1/2" Drill Chuck & Chuck Key 10731 is a durable steel drill chuck designed for use with a portable magnetic drill press. Its silver color and compact size make it easy to handle and store. The chuck key included ensures a secure fit for your drill bits, providing stability during drilling tasks. The adapter 08186 included allows for easy transition between different drill sizes, making it a versatile tool for various metalworking projects. With a swing of 12.00 inches and a drill travel of 2.00 inches, this drill chuck is ideal for professional use in a range of industrial applications.