I bought this to subtract some material from a piece of forged aluminum. don't have a lot of experience with the material, so i bought a few different end mills just in case something gave me trouble. in my experience, i thought i would use this to plunge cut and a 3-fluted or more for everything else. this thing blasted through the material. it was so sharp and rigid that even 1.25 deep, it never tugged or made the part slip, despite it being in soft jaws and a manual machine with no power feeds. I never took any of the other tooling out of the packaging. in hindsight, i probably didn't need to buy carbide, but it's a great investment if you're afraid that something lesser would dull and ruin your part by moving it or something.i don't know how much material i removed with it. i cut with it for over an hour and if it's not as sharp as when i began, i can't tell. I ran it with water and a dash of rust lick to clear the chips.
Rating: [5 of 5 Stars!]