While looking for shim stock from which to create an imprompto ring compressor, it occurred to me that most folks have an unlimited supply of shim stock close at hand. It does have to be liberated from beverage or other cans.... The piece I just freed from a Diet Coke (USA) can mics 0.0041" (and yes, Jesse, that is a real measured tenth and not Kentucky windage). Charles Good thinking Charles, but why can't you do as I said and just squeeze the ring together with your finger tips or has a life of accounting and book keeping left you with tinder fingers?? Jesse MODEL ENGINEERING DISCUSSION LIST. To UNSUBSCRIBE from this list, send a blank email to, modeleng-request@xxxxxxxxxxxxx with the word "unsubscribe" in the subject line.