I like the way they work and would like to give them a high rating but the advertising here is a bit off. The 1" cutter uses TPG22 inserts, not TPG32 as listed. 1 1/2" and 2" use TPG32 as indicated. So I bought and now I have some extra TPG32 inserts that don't fit in this grinder and I don't have the actual inserts I need to get the job done. Can be made a little clearer. I like how it works so here's the thing.