The product is a set of two Universal Engineering 300 KWIK SWITCH collet chucks with collet . Made in the United States, these adapters holders are designed for use with a taper size of 300 KWIK SWITCH. The shank type is specifically made for the Kwik Switch 300, providing a secure and stable grip for various tools and workpieces in CNC, metalworking, and manufacturing applications. This product ensures high-quality toolholding and workholding capabilities for precise and efficient machining operations.