I have an HDPE project where 75% of the carve works with a 1/16" single upcut that I bought from Onsrud, a small area needs an even smaller bit.
I found a 1/32" Single Upcut bit from Harvey Tools, however the distributor doesn’t list the item on their shop page.
Inventables has a 1/32" 2 flute upcut fish tail, though I’ve had bad luck on HDPE using anything but single flutes.
Any suggestions where a bit like this is available?