4 Jewelers Hammers For Jewelry Repair. This is a new set of 4 jewelers hammers. These are perfect all aspects of jewelry manufacturing and repair. You receive: One ball pein hammer with a face that measures approximately 3/4" (19 mm), a head that measures approximately 2 9/16" (65 mm) long and has an overall length of approximately 7 7/8" (199.8 mm). One ball pein hammer with a face that measures approximately 11/16" (17 mm), a head that measures approximately 2 7/16" (62 mm) long and has an overall length of approximately 7 7/8" (199.8 mm). One brass hammer with a face that measures approximately 5/8" (16 mm), a head that measures approximately 2" (51 mm) long and has an overall length of approximately 8 3/4" (222.25 mm). One jewelers hammer with a face that measures approximately 5/16" (8 mm), a head that measures approximately 2 3/8" (60 mm) long and has an overall length of approximately 8 5/16" (211.2 mm). 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.