New 4oz Brass Ball Pein Hammer. This is a new 4 ounce brass ball pein hammer. Great for metal working. Has a face that measures approximately 5/8" (15 mm) in diameter. The length of the head measures approximately 2 1/4" (56 mm). The hammer measures approximately 10 5/8" (270 mm) long. We work hard to update our descriptions and pictures of our merchandise. As part of a process of ongoing innovation by our suppliers, newer versions of the item shown may be shipped before we are able to complete an update. As a result there may be a slight variation in color and design.