What are ER collets and which brands make the best ones?

ER collets are toolholding collets designed for use in CNC mills, lathes, and other machining applications. They are often used to hold drills, end mills, and other
cylindrical tools. The ETS/ETA brand of ER collets are among the highest quality in terms of runout, build quality, and collet design.

Learn more about our precision-engineered ER collets.