Vibrant Manual Bead Roller 3/4in O.D. minimum tube diameterThis sturdy and cost effective tool makes it easy to add a professional looking bead to all types of tubing. Great for Aluminum up to 16 gauge wall thickness (0. 065 or 1. 65mm) and also suitable for Titanium up to 18 gauge (0. 049 or 1. 25mm). Made from high quality steel and aluminum components, this assembly comes complete with everything you need straight out of the box, including a convenient carrying case. Minimum tube diameter to use on this