I test 2 sets of undersized router bits, one from Yonico ($26) and one from Whiteside ($62). I actually measured the plywood (.217in) the Whiteside 1/4in (.221) and the Yonico 1/4in (.201). Remember your results may be different. I can take 3 measurements with my cheap calipers and get 3 different results.
These are affiliate links, they cost you nothing but help the channel out.
Whiteside undersized router bits: https://amzn.to/4aKPEwz
Yonico undersized router bits: https://amzn.to/3Hb6B5L
MicroJig Dovetail Clamps https://amzn.to/35PhR8E
JessEm router lift: https://amzn.to/41StvrW
Setup blocks: https://amzn.to/3HcwP7Y
On this page of the site you can watch the video online Testing Undersized Router Bits with a duration of hours minute second in good quality, which was uploaded by the user Alaska Workshop 08 January 2024, share the link with friends and acquaintances, this video has already been watched 4,478 times on youtube and it was liked by 186 viewers. Enjoy your viewing!