Even if you hit it appropriately, the striking surface will try to hit the base material perpendicularly, so you can use it only if you flatten the distorted sheet metal without stretching it. Since it has a throttle groove, the striking face is naturally full of scratches. I own the home and KRT's uniform and diaphragm, but usability is not as good as it is expected. The hammer of the head family has the highest balance with the highest, the striking mark of the diaphragm is random and precise by rotation at the time of batting. You can not grasp the dent in polishing mustard. Scratches on the base material of this product are coarse, bite ingrowth is more mild. It seems that feeling is impaired even if the handle is somewhat too thick. Although the head family conveys to the hand which held down the base material panta and rotation, this product does not seem to move so much. However, since it is originally in the assumption, we are applying it to the striking surface which can not be applied because it is a waste to the real thing.