The Osborne/Riehl carding wheel 3/4arbor size is in stock at Brownells. It's .005 wire. I've used one of those but w/ 1/2" arbor for the last 40 yrs and never a problem.
I cut the speed down to 300rpm or so w/ simple pulley setup. A light even touch does it. Let the wheel do the work removing the coating. Don't go at it like you're removing old paint from a screwdriver blade!
I've never found the .005 wire to be too harsh. You have to card efficiently and completely. I used one of the ,0025 dia wire wheels a few times and didn't get what I needed from it in efficiency.
(I can't believe the price of the wheels now!,,I haven't bought one in years,,good thing I did buy an extra or two back when)
