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

Used it for cutting mortis joints, it worked as planned.

This is a very adequate bit. Sharp, cuts are clean. As advertised. I use this in a plunge router to cut mortises in hardwoods and the results are quite satisfactory. Why pay more?

I was impressed with the results. Good quality and very sharp.

The bit is quite the beast. I am just a hobby woodworker and admittedly the bit is handling all that I throw at it. It may not hold up to extended mass production use. But for the purposes of routing out mortises, tenons and rabbets, it does a really good job!

Very impressed for the money

Never owned one before but great cutter

The bit I got was out of balance. So severely that at 12000rpm it was wobbling by 0.3mm.

This is a nice quality bit, very sharp.

Perfectly smooth and fast cut through 2 of Walnut

Great bit. Used it for a bunch of deep mortises in cherry and cuts like butter. Night and day going from straight bits to spiral. Feels much safer, more control and cleaner.