I was just browsing through some of the posts and like the one I saw on how to sharpen end mills. One guy was using a dremel in a video to do it. I didn't want to post the question there so I created this thread just to learn more about what makes drill bits and end mills dull, assuming you are using cutting oils and going at the right speed/feed rates.
I quickly dulled some drill bits going thru some carbon steel even using right speed and smaller bit followed by larger bit. Bedframe are particularly nasty.
I quickly dulled a new end mill while milling some railway spikes and tie plates. I think there was some carbon content in that steel.
Anyway, if anyone has some general info on this topic, much appreciate. Costs money to replace drill bits and end mills and I've tried sharpening them with some success but not complete success.
I quickly dulled some drill bits going thru some carbon steel even using right speed and smaller bit followed by larger bit. Bedframe are particularly nasty.
I quickly dulled a new end mill while milling some railway spikes and tie plates. I think there was some carbon content in that steel.
Anyway, if anyone has some general info on this topic, much appreciate. Costs money to replace drill bits and end mills and I've tried sharpening them with some success but not complete success.