Our new stock (1050, 800, 800 110V): The Kress collet nut has been redesigned....the "C" shaped snap / retaining ring has been removed from the Clamping Nut.....the internal machining has a very small raised profile, collets can be removed using light fingure pressure (
www.worldofcnc.com)
NB: Kress Stock, Spare Collet nuts have the retaining ring..