The 2 Flute Spiral Flush Trim bits With Up Cut. 1/4" Shank Diameter and 1-3/8" Cutting Length and 3" Overall Length. For use with soft & hard woods, ply-woods, composites, laminates, plastics and some non-ferrous metals. Premium solid carbide with 60HRC. Industrial Quality Router Bits.
I made 4 cuts with this bit and the 5th bearing fell off. The first four went really well. Then I just used it to make a cut that I could have done without the bearings and the bit broke off. That was the first time this happened to me with an editor.