uxcell 10Pcs 0.8mm Carbide End Mill Engraving Milling Cutter CNC Router Bits for PCB Machine, 1/8" Shank

These have performed great so far. I did break the first 3 before getting any machining completed. Actually ran in aluminum with good success. Need to keep in mind they are only .6mm (.023”) in diameter so high RPM.

I used these on dual layer abs for sign making. Work great and you don’t have to be careful with them because they are super cheap. Haven’t broken one yet

We bought these as replacement bits for our CNC machine. They were the exact same size as the original ones we had. Because they are such a fine bit they do break very easy. It was nice you got so many for the price to have backups if they do break.

Comes with a easy open close carrying case so you don't lose the bits.Works fine on the milwaukee router

I use them all the time for projects in 6061 aluminum with no issues. If you read the other reviews i can tell you they have no clue on what they are doing. If you know feeds & speeds for your material these will last a good amount of time. If you plan on using these small end mills use flood coolant of mist with allot of chip clearing.

These bits are ok, at best. And, that’s me being fairly generous.Even cutting clear pine (no knots), with really low feeds and speeds (0.005” depth per pass, 25” per minute feed rate, 12.5” per minute plunge rate), these bits break constantly.I literally went through three bits on the first carve attempt.I had to go all the way to 0.002” depth per pass to make it through the carve. That’s outrageously shallow. Which means it takes forever to achieve the desire depth.At that rate it becomes very not worth the hassle.I can cut clear pine by breathing heavily 5’ away. But, somehow these bits are unable to cut it while being babied.These are inexpensive bits, and a definite poster child for the “You get what you pay for!” crowd.Look elsewhere, if you’re asking me.

1. They work.2. It's only 0.8 mm it's going to break.3. If you keep breaking like me at a point, check your code. Mine kept ramping IPM 400%, breaking solved.

I tried using some these in a benchtop mill to engrave numbers in soft aluminum. 3 of them broke in 5 digits only removing about .003" of material and as slow as I could turn the handle on the table. If they don't work for this I'm not sure what else they would be useful for. Don't waste your money.

I bought these for cutting fret slots with a shopbot cnc router worked great . Used one bit and didn't break it

Works great