- Joined
- Dec 21, 2018
- Messages
- 2,211
We use Onsurd bits on our CNC. Top quality and will out last most others on the market. We use the intermediate coated compression spirals mostly 3/8" cutting melamine or HPL particle board. They can be sharpened but you loose the coating. We take them out of service as soon as the back side of the finished board starts showing any deterioration. They still have life left for hobby use. Send me your address if you'd like to try some. I use my D-bit grinder to sharpen the ends for cutting metal. They are compression spirals so not ideal for metal but work for shallow cuts. You must be cutting plastic to use O flute bits?Needed some bigger single O flute end mills for the router table.