I bought 3 1" carbide double cut burrs from Shars Tool and they are junk. Absolute crap! They are not ground the same. They are not end cutting. I guess the $10 price is a giveaway. The pkg says Made in China and the words are blacked out with felt tip pen.
Live and learn. I pay around $25 each for high speed steel ball rasps and they are great. This is my opinion of the tooling and not meant to knock the guy who posted the tool co.,s name. YMMV
I looked at the Woodcraft ones, but the one above looks sweet!!! I have just been using one of the cheapie round aluminum oxide from homies for my popper faces, and it does ok, but carbide would be nice.
Understand something; A carbide tool is no sharper and cuts no better than a high speed steel cutter. They just stay sharp longer. Also carbide is very brittle.
If you take care of your high speed steel tools they will serve you well. I use the high speed steel 1" ball rasp and I clean it with a toothbrush. I have done a couple hundred popper cups and it's still going.