Review on Precision Cutting with CMT 191 507 11 Carbide Spiral Diameter: Optimal Performance Guaranteed! by Tory Richardson

I purchased this for routing doggie holes on a woodworking machine I build and after drilling 55 holes in solid 2-4 thick maple feet, walnut and oak borer looks just as worn and cuts the last hole just as easily and cleanly as the first. The racquet came in its original packaging and is another example of "you get what you pay for". I would definitely buy it again if I ever need it. I have other CMT bits and have never been disappointed