I own the cutter tool from golfsmith and the green tool from TGW.com. The green tool seemed more like a really good groove cleaner. The Golfsmith tool actually cut the grooes and made them deeper. Also the golfsmith tool had differnt head options. You could cut them in V or U groves. I really like the tool and it seems to keep them in good shape, although I'm not sure if my groves are conforming or not and it is a little hard to cut the grooves and not the face.