ER-sized collets are one of the most commonly used types of tool holders in CNC machining. Renowned for their versatility and reliability, these collets are designed to securely hold a wide range of round-shank tools such as end mills, drills, reamers, and taps.
![Techniks Inc ER 32 Collet, 5/8"](https://www.wurthbaermachinery.com/images/P/04225-16-09.jpg
"Techniks Inc ER 32 Collet, 5/8"")
