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

This is exactly what I needed when building a front door with 3 inch deep mortises and using a 3hp plunge router.

I like it

Excellent edge quality and sharpness. No problem routing 1 3/4 depth red oak with no deflection.

Worked well for cutting my tabletop.

Solid bit that cuts smoothly with little splintering. Didnt perform as well as Id hope with plywood but Im sure Ill be using this bit often in the future.

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

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.

I use this bit for edge jointing on my router table. Its incredible, if youre on the fence you should give this a try.

Run in a commercial shop on a CNC router in walnut and Oak. This thing performs better than the big names like whiteside, freud etc and at half the cost. Its so sharp its virtually silent. Very impressed.

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