5 Brass. Pin Punches for Carpentry & Metal Working. This is a new set of 5 brass pin punches. Great for carpentry and metal working. These have knurled handles for firm gripping. The sizes are: 1/8", 3/16", 1/4", 5/16" and 3/8". Each measures approximately 8" (203 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.