SpeTool5PCS 2 Flutes Square Nose End Mill Set Power Milling Machine Carbide Upcut CNC Router Bits Tiain Coated, 1/4 inch Shank, 2 1/2 inches Long Overall

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.

Hard to tell from the photo, but the cut was clean with minimal visible tool marks on the bottom or sides when cutting 6061. This was the primary reason for purchasing, so I'm satisfied.For what it's worth though, tried to use one to cut acrylic. While it did cut, I had to pause the job multiple times to snip off excess material from the tip of the endmill. Probably better to stick with cutting metal using these.

These leave a much worse finish than the usual 1/4" 2 flute straight bits I use

I don’t run these in a CNC. I run them in a Bridgeport & they run fine. I run them at 3,000 rpm & they do what I need them to machine.

Nice set of bits, very sharp. I have been using these for hogging out material from hardwoods on my x carve. I've run 40ish hours on my first bit and still cutting well.

These are amazing for what I need them for. So far I've ran this endmill through this job 2 times. The program is just over an hour making it around 2½hrs of use in total. This bit is still cutting like butter and ready for the next job. These are the only endmills I will buy from now on. Don't go spend $60 on an Amana when you can get 5 of these sub $40. Just stop searching and buy these. Thank me later.....your welcome!

I wish the shoulder was just a hair higher. It's a little too close for comfort when cutting through 1/4" stock.

Works as expected. Perfect for my project.

These bits work very well in my palm router.

Fragiles

Bon outil

It doesn’t plunge a straight hole in aluminum, But all other work has been good.

Pour la cnc