Titleist 2009 Vokey Wedges | Golf Monthly

But if the grooves start out at legal maximum, there will be no material to remove, without going illegal. Unless, if by wear, the grooves close up. Through hitting a plastic golf ball, I think not. Obviously you could remove stone damage, but that is about it. To me, if this tool removes any material, to sharpen the grooves, then it must make the club illegal. Obviously, if you had a very old wedge, where the face has worn significantly, such that the grooves were begining to disappear, then you could legitimately put them back, but this sort of wear takes 20 years, not one season.

To me, the only use for this tool would be to clean the grooves, not sharpen them, as tool which 'fits' the grooves will clean them better than a brush, which must leave debris in the corners.