I bought this beater to use with my Shapeoko CNC machine. It cuts great and I like the fact that I can buy new carbide inserts instead of a new cutter. My only real complaint is that the design of the bit only allows you to use 2 of the 4 corners of the carbide insert. It would be nice if the bit or insert were designed in such a way that all 4 corners could be used. In any case, it's worth the money.