The chucks use standard 5C collets and can run at speeds in excess of 8,000 rpm.
The ER series chucks come with the tool body and collet nut, and they can accept ER collets or sealed nuts from any manufacturer.
The versatile collet-chuck -style broach toolholders use ER-style collets, which are said to reduce the time-consuming, three-screw method of centering a high speed steel broach in the broach toolholder.
Cordless impact drivers look a lot like driver-drills with 1/4-inch hex collets instead of three-jaw chucks, but appearance is where the similarity ends.
The one-piece chuck design eliminates excess tool run-out common to collet and hydro toolholding systems.
The ER collet chuck torque wrench is said to clamp virtually all standard ER collet chucks exactly and without over-tightening, which improves runout and limits damages to small collets due to excessive clamping efforts.