Greetings All, Anybody here have a Burnerd Multisize collet chuck? The factory doesn't know which oil to use. It's apparently not being sold anymore (not my model at least) though the collets are. Anyway, it's a manual device and has a bronze ring which rides on the spinning body and is the part that actually operates the closing mechanism. There is a lever assembly in which the bronze ring resides. Max speed in the machine it's installed on is 1500 RPM. Thanks, Eric