These tools are great and they have a fusion 360 yool library making it a seamless experience. I'm new to cnc machining and plan on buying a lot more of these spetools milling bits! No complaints

This works very well on MDF making dog holes

What, no chip load or tech data for CNC Users...Please??

I have several routers, only one is CNC. It happens to be one of the popular 3018 machines with and extended Y-axis, call it a 3037. I have a poplar board I've been using to make spoil boards. The W05011surfaced my latest spoil board very well. More importantly, it squared the spoil board to the spindle. This board had been through the jointer and thickness planer already, so it was already close and didn't take much to finish it. I haven't tried it on MDF because my dust collection system isn't great. I do like the fact that the cutters have 4 usable sides.AND it has extra cutters. It's going to be a long time before I need more. I'm not cutting deep. I'm only making sure the spoil board is aligned with the spindle. Out of curiosity, I also tried on a purple heart work piece. Again, not going too fast or cutting deep.It did very well on a 6" x 6" purple heart board. If you've ever worked purple heart, you know it can be difficult. I only took off 3/32". Yes, I did need a little denatured alcohol to clean the bit afterward. That was expected. If I find something not to like about this bit, I'll edit my post. At first glance, this bit works as advertised.
(Yes, at one time I was a Cobra helicopter mechanic.)

Great finishing bits.

Bought this bit to flatten slabs of chainsaw milled wood. I’ve used it on half a dozen so far and it’s performing excellent. They are 10 year air dried apple about 15” wide by about 4-5’ long with severe twist and bow.

Directions are horrible but other than that it works as it should and is great quality

I had hand surgery right after I ordered the fly cutter so I haven't been able to use it just yet. But the balance and the way it was designed I think it will work good. Here in about 2 weeks I'll be able to try it and will add to this review.

The price and delivery were good. I used this bit on my small CNC to surface some ash slabs about 2' x 2' x 4" thick that were chainsaw cut. I was not cutting end grain. It worked very well at 18k, 0.10 deep with 24% stepover. After cutting 4 of these faces I could tell the cutter was probably dulling a little because there was more heat in the cut. I did clean the carbide cutter surfaces after each cut. I would purchase this bit again.

Fantastic bit. My carves are very detailed and so clean off the machine I have less than 5 min of cleanup sanding.

Worked great for my colorcore signs!

Worked great for my colorcore signs!

I think these bits are fantastic and highly affordable. I'd purchased more expensive bit from a different vendor, only to find that they became dull very quickly. I've purchased many sets of these for a fraction of the cost and am very happy that I did.

Assembly took awhile as the instructions where not the best. I had read this in a review when I was shopping so I was prepared. I took my time and it came together. Using the router sled has really made a difference.

This surfacing router bit really did a great job of providing a smooth surface on an end grain board. Greatly cut down the amount of sanding the surfaces required.