Lowhog Your diamond matrix wheels will last a lot longer if you refrain from cutting steel with them ( steel clogs them up pretty quick as well overheating the matrix causing it to break down quickly) Use a Vitrified wheel for steel to relieve the area behind the tooth then sharpen the carbide teeth with the diamond wheel. And yes I know that there are a few wheels available that can be used for either but the quality of the grind finish is substandard. Also you should be cleaning any residual crud from the area shown in the picture before regrinding. Note: this is my full time occupation. Just a suggestion you do what you want. Chris, Mr. B's Blades- providing repair and sharpening of tools since 1936. ( this is not an advertisement for business).