KOWOODPlus Core Box Router Bit Set, 1/4 Inch Shank, Cutting Diameter in 1/4”, 5/16”, 3/8”, 1/2”. with Updated KOWOOD C3 Carbide. Great for Making Signs, Decorative accents to Furniture & Plaques

Works as expected. Good product for the money.Time will tell.

They are good quality and nice and sharp but instead of it being a round profile it has a tiny point at the tip and it leaves a line through your juice groove and it’s a nightmare to sand out. Don’t waste your time, spend the extra money and get a different set

No information on durability but they seem fine for the price.

Used the 3/8" core box bit to rout a juice groove in a maple cutting board. The bit left gouges in the wall of the cut and a slim vein in the bottom of the cut. Very disappointing and ended up causing me to spend an excessive amount of time sanding out the machine marks. I expected a smooth cut but this bit did not perform. It ran at just under 18,000 rpm, the maximum per the manufacturer. Will be returning the set due to poor quality.

So far so good. More user error than anything else. Got these to start trying to make routed signs. I they routed the wood fine. I started with the smallest for the outline and worked my way up for the body of the sign. I just need to have better free hand router control.

I used the 1/2"D bit on a teak cutting board. It gave a very smooth cut, however I found the bottom of the groove was not perfectly round. Otherwise, the bits are of good quality.

I don't think there is a need to buy expensive bits if these work good. So far they are staying sharp.

Bits arrived quickly and order was correct. Product met expectations especially considering low cost. Used the largest diameter to make a sort cut, result quick and clean. I can’t comment on sharpness over time.