Jewelers Bronze Dapping Block Doming Tool 2 3/8" x 3". This is a new bronze dapping block. The depressions have a smooth finish that are great for shaping metal. The half spheres are precision machined and hardened to perfection. Has 25 half spheres that measure approximately 1.53, 2.30, 3.45, 5.00, 5.60, 6.60, 7.00, 7.80, 9.61, 9.95, 10.10, 11.31, 11.38, 12.17, 13.20, 14.10, 15.56, 16.15, 17.08, 18.65, 18.95, 20.30, 21.60, 22.85 and 24.11 mm (0.060", 0.090", 0.135", 0.196", 0.220", 0.259", 0.275", 0.307", 0.378", 0.391", 0.397", 0.445", 0.448", 0.479", 0.519", 0.555", 0.612", 0.635", 0.672", 0.734", 0.746", 0.799", 0.850", 0.899" and 0.949"). The block measures approximately 2 3/8" x 3" x 1" (60 x 76 x 25 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.