4" I'd was right, it wouldn't slide onto the pipe. maybe I need to adjust the file a little?

great print, I use knobs like this everywhere as a carpenter/ cabinet maker. Jigs and different application around our shop.

great print, fit was really tight in the ama pro. other than that it worked great.

we made these from scrap plywood. with all the French clear designs it saves us countless hours in the shop! great print, very strong and holds all different type of tapes!

print was great! thank you.