Up-Cut Spiral Router Bit 1/2-Inch Shank, M2 High Speed Steel HSS CNC Spiral Router Bits, 3/4" Cut Dia, 1-1/4" Cutting Length, for Wood Engraving Grooving

This is a nice bit from PROMSA. It is a 1/8 diameter with 1/2" cutting depth. This combination gives me some confidence with running this bit (on my CNC) through some harder woods. Some of the longer 1/8 diameter bits start to make a frightening noise if they are moving too fast through a hard wood or knot. This bit is very stout and moves through the material very nicely.The bit comes packaged in your standard square bit-tube. The tube is clearly labeled and stores nicely alongside my other bits.I am very happy with this bit.

I picked up this little bit to route some 1/8" lines for inlays in the guitars I'm building.It worked great in the old cedar lumber I had to test it on.I set it to about 1/8" deep for the cut and freehanded the "Amazon" in the block. The bit worked great, and was easy to control at that depth. -I do use templates when building guitars.The only concern I have is if I can have enough patience to move the router slowly, so the tip doesn't break. It seems pretty sturdy, and I think it will last a while as long as I don't push it through the wood.

I'm very happy with this 1/8" upcut CNC router bit. It cuts through wood quickly and easily, and it leaves a smooth finish. I've used it so far on a one hour carve in an Oak project and it's shows no signs of dulling or wear. I would definitely recommend this bit to anyone looking for a quality bit on a budget. Will update if any issues arise!

I use this bit on my CNC router for cutting thin material for craft projects. The downcut design does not lift the wood making it much easier to hold the material in place while routing the project. The bit is sharp and I expect to get good life from it.The downcut design is not good for cutting deep as chip removal is not as good as an upcut. This design leaves a cleaner top edge and is good for shallow cuts or thin material.

I didn't have the highest expectations trying a new bit (I've been "bit" to many times) *see what I did there?* These were pleasantly suprising. held their edge really good even with some abusive hardwoods that normally can gum them up. They haven't dulled yet and I'm on a few weeks of pretty heavy use now. I will look for this manufacturer again. Great quality for a fair price!

The PROMSA 1/8-inch Up-Cut Spiral Router Bits was tested free hand in dry Cherry wood. The bit cut fast and produced smooth sides and bottom. I expected the fuzzies at the top of the cut and do not mind them. The fuzzies will disappear with final sanding.This is an excellent bit for shallow cuts.

Nice and sharp. Will make a good inlay bit.

So far this bit is working as it should, clean and smooth. I've used it to cut 1/8 slots for dividers on a jewelry box I'm making and it cuts an exact 1/8 slot. Not really anything negative to say about it.