SpeTool Upcut Spiral Router Bits Extra Long (4 inch) with 1/2 Inch Shank , 1/2 Cutting Diameter Solid Carbide CNC Router Bits End Mill for Wood Mortises and Cutting Dadoes Carving

Very high quality was not disappointed. I use it for making maloof joints and making the first notch. Could not recommend it enough.

I been using this router bit for years, like the quality and the price, will be buying the same in a regular basis

This three flute spiral bit cuts far smoother that the single flute bit I was first using to edge a workpiece. Expensive, but worth cent!

Worked well for cutting my tabletop.

I purchased cutter to machine mortises, really pleased with finish.

Got this bit for a project that I needed to do a lot of mortise and tenons. Stayed sharp the whole time and worked great. Didnt dull at all, so I am assuming the longevity is good as well

These router bits are not square. In other words, the top is not perpendicular to the sides so if they are used for something like a dado or finger joint you will not get a square cut. I have tried several and they were all the same.

Nice sharp, make clean cut. with hand router i was able safe way to make 2 inch deep cuts

This is a nice quality bit, very sharp.

Very sharp. Just what I wanted.