CMT is an excellent quality C4 carbide bit. I use this bit in an HP 2 1/4 PC router. Its specific use is cutting dados with a homemade milling jig. Does it flawlessly. Dado crisp and clean, no tearing. I have other CMT bits including a grooving kit. All of them cut smoothly and correctly. I also use Freud "Quadra Cut" bits. A design concept that CMT would love to adopt. However, this beat is great. I don't think another straight bit could have worked better.