Tappered Bits Tool Library

I’m afraid that Carbide Create doesn’t support such endmills.

My suggestion would be to do the math to calculate diameter at intended max cut depth (don’t measure w/ calipers, risk of damaging the cutting edge) and enter as a ball-nosed endmill with that diameter.

Then, I believe one can enter such tooling into CAMotics and get a reasonably accurate preview — based on that you should be able to decide if it’s worth trying the cut or no.

Best option for unsupported tooling is either manually coding toolpaths using a tool such as https://tplang.org/ (see https://wiki.shapeoko.com/index.php/Programming for other options), or finding a tool which does support the geometries in question. Not sure if Carbide Create will ever be that tool — check in on the wish list thread: Carbide Create Pro- What do you want to see?