I’ve been looking for endmill suppliers and there are plenty but I’m a bit lost on how to choose.
When it comes to base specifications I think I’m largely fine. Flute count, angle, coating, shank, diameter etc., I know what I want.
What’s got me confused is that prices for “the same” endmill are all over the place. One supplier might offer an endmill for $4, while another offers “the same” for $10 and yet another for $30. These are all EU/US tools, no Chinesium involved, though brand vs. no brand is a thing.
So what are the differences between these endmills? I can offer examples if needed.
And then the next question, if I have a selection of endmills, how do I compare them? Should I expect different endmills with similar specifications to produce different surface finishes? To handle feeds and speeds fairly differently? To wear differently?
To make the question easy, what’s the objective difference between a Chinesium endmill and say Harvey Tool? Not “you get what you pay for” or “consistency” but if I have one of each sitting next to each other on a bench, why should I reach for the Harvey Tool?