That is what I do but mine doesn’t make a cut that wide. The file cleans it up and makes sure the corners are sharp and 90°.
I do have a tool I ground that makes a flat bottom groove .110 wide but I gave it positive rake and it likes to chatter. I need to grind a new one.
I do have a tool I ground that makes a flat bottom groove .110 wide but I gave it positive rake and it likes to chatter. I need to grind a new one.