I've been cutting my rings from plywood on a drill press, but the cheap Chinese circle cutters don't seem to last (photo attached or my recently bent cutter), or cut that well in the first place. I'm often doing work outside the normal 38/76/98/etc steps, so custom adjustable hole sizing is nice. Does anyone have tips on finding a source of replacement or better cutters, or am I already at the best there is? I wasn't a fan as much of the router method when I tried it for the thicker plywoods in HPR. Not a fan of router kick.
https://www.amazon.com/gp/product/B073DXH972/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1
https://www.amazon.com/gp/product/B073DXH972/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1