ERSC waterstop collets

ERSC waterstop collets are flexible collets that feature a special end-face water outlet, discharging water from the center of the tool or along the tool shank diameter.

They are used to provide coolant during machining to improve heat dissipation and chip evacuation. They do not require a water-discharging tool.

Models available are ER-11, ER-16, ER-20, ER-25, ER-32, and ER-40.

Runout accuracy is 0.005 for HP grade and 0.008 for AA grade.