SainSmart Genmitsu 10Pcs Nano Blue Coat End Mill CNC Router Bits, 0.8-3mm, 1/8" Shank

Very pleased with this, for my cnc and they work great , cut great

So far these have worked great for cutting wood. Just be sure to get your feeds and speeds right. Run them too fast and you break them, run them too slow and you create friction which heats them up until the either break our wear out very fast. Even the most expensive endmills in the world can be destroyed by operator error. I got good results cutting hardwood with the 1.4mm bit using SFM: 141, chipload of .005, and a depth of cut of .0157 (4mm). I would not probably not recommend cutting metal with these, but I have not tried it yet.

The small ones are likely to break, but that's kind of the nature of working with bits this small. They all cut well in my CNC, tho so I would still recommend them.

CNC bits great I use them to cut plastic/epoxy resin. Good bits.

I first got a set with my CNC machine and have been using them for 3 months. I'm cutting something with them almost everyday, mostly plywood, and they have been durable. the bits are still in great shape and cutting clean. I know that they will eventually going to wear out with how much I use them but they show no signs of slowing down for now. I was so impressed that I ordered a second set since I saw them as a great price on Amazon. The set includes most of what you will need for a CNC machine with a 1/8 collet. It does not include the "V" cutters.

small bits lasted 1 pass then broke. I was even cutting MDF. I adjusted my feed rates and pass depths accordingly for the small bits. The larger bits do cut, but i feel they do not cut as cleanly as a standard spiral up or down bit. Price is cheap, so i gave them a shot, but i wont purchase these bits again and i have put them aside for now.

Love these bits. Shipping was very quick too.

The largest is in fact very close to 3.175mm, and the smallest close to 1.5mm, but other than that they seem to be placed at random sizes, nowhere close to representing the dimensions shown in the photo. I also got two identical 2.4mm bits, which is not a huge deal for me, but I was consider using the 2.2mm for something and I didn't get one. So they're cheap and good for things that don't require a specific width dimension.