I am using it to cut thin polycarbonate. So far I have had no issues and the bit has been holding up well.

Very good, thank you.

I’m making natural edge mesquite frames out of 2” mesquite. I had great hopes this could give me the straight,smooth edges I needed on the inside. I got a 3” wide strip rom Home Depot for a straight edge and this bit, at the slowest speed for safety, cut it like a hot knife thru butter. Perfectly smooth with no ridges from the blades. I got this on sale, but seeing the performance, I wouldn’t hesitate to buy it at full price.

Love this insert. All aluminum construction for durability and light weight. Simple enough to set up. Just trace and use router or chisel to inlet into the top of your choice. Accepts most popular routers. Three different center rings allows a wide variety of bits. Comes with fully adjustable dust gate/collection chute to allow for effective debris collection. Add your own fence and you now have a router table at a fraction of the cost of purchasing one.

Really good router bit. I've given mine a real punishment, deep cuts into rosewood and a hard mahogany and it still cut well.
My bits were delivered extra fast.
Probably the best 1/8 inch bit with more than 1/2 inch depth on the market.

Only having used this tool a couple of times, I am completely satisfied with it's performance. I have used the bit to flush trim a few patterns in walnut and white oak. This bit moved right through the wood. The cut was very smooth. I am also happy that I will be able to turn / swap out the cutters.

I had previously been doing all my slab flattening on a home made sled. It worked ok and it got the job done, but it had many limitations, some of which I didn't even realize until I started using the SpeTool sled. The first issue was that it had too much flex in the wood rails and would sag when I tried flatting slabs larger than about 20" wide. The second issue was the mess it made in the shop. It was actually so bad that I would have to use it outside. The biggest draw back however, wasn't realized until I started using the SpeTool sled. With the SpeTool sled I was able to work the router with the grain down the long side of the Slab This was something that I couldn't really do with my homemade sled. Working with the grain produces a smoother surface and is less work in my opinion. Then when you add in the dust collection, I was able to work in my shop again. Now I am not going to say you won't need to vacuum when you are done, but the mess is drastically less than with no dust collection. Also, the aluminum rails are much stiffer than my wood ones and don't flex nearly as much over larger spans. I would absolutely put this kit at the top of my list if I was setting a small garage shop up for slab flattening.
Rob @ RM Woodcraft llc

Their inexpensive, and I like the code you can use with carveco

Very happy with purchase. Came to this site as couldn't source it off Amazon where I normally buy

I used the 1/8 x 1" compression bit for cutting 3/4 inch hardwood for wooden toys on my cnc. These bits outcut most of my other 1/8" bits by far with less heat problems and slippage in the chuck.
I will order more when needed for sure. Great bits

I am making wooden toys for great grand kids and needed bits for my cnc to cut 1/4" cherry for some of the parts . Your 1/8 x 3/4 compression bit worked like cutting butter. Nice bits, will purchase more when needed.

I have been using these bits for the last two weeks pretty much all the time. So far they have held up very well and make good clean cuts. And you can’t beat the price either.

Works great

What a coincidence - I had watched a video about spiral flush trim router bits just a few days before this one came available through the vine program. I did not hesitate one millisecond before ordering it. The video was right. These spiral bits do a much better job than the old style flush trim bits.

As for build qaulity and such, this bit is excellent. It has a nice solid build, the bearing is rugged, it's balanced. It's all I hoped for. I'm really happy with this router bit. I have bot need to replace any of the carbide blades but have removed one and then put it back in place. EZ

Great product at a price point equal to our less than building it myself