Review on Amana Carbide Spiral Coating Stainless Cutting Tools by Colin Watkins

Worked great for my purpose. I was able to drill 676 holes in a 1/16 inch piece of aluminum with my CNC machine. The beat still seems to be in perfect condition. I'm not a computer user so let me know if you need my channels and speeds. I used the "Drill" command in Fusion360. I would probably use it for MDF drilling as well.