Check the listing for details. Hardinge 5C Round Collet 25/64" Internal & External Threads. Condition: Used. Listed at 19.88 USD. This Hardinge 5C Round Collet is a high-quality tool that is perfect for precision machining in metalworking. The collet is designed with both internal and external threads, making it easy to use and machine. It is made from durable materials that ensure long-lasting performance and reliability, making it a great choice for professionals who need a reliable tool that will get the job done. The collet is available in a size of 25/64 inches and is suitable for use in a variety of metalworking applications. It is compatible with CNC machines and other tools that require a high degree of precision. With its round shape and precise design, this collet is sure to provide you with the accuracy and performance you need to create high-quality metalworking parts.