I just looked and the plastices blade actually says it is for both plastcs and aluminum. It is not a carbide blade. -- Would it be worth sharpening if it is not carbide? I think it is a cheap blade that I picked up for a specific project.

With this thread, I am hoping to get help in identifying an end-state goal set of blade recommendations so that I can start upgrading my blades one-by-one. I look forward to your help.