Half Round Forming Block Jewelers Metalworking Tool 6" This is a new steel forming block The depressions have a smooth finish that are great for shaping metal Made from high carbon tool steel that is precision machined and hardened to perfection It has 21 half cylinders Ideal for forming and shaping metals such as ring shanks, identification name plates, etc Ideal for forming and shaping metals such as ring shanks, identification name plates, etc It measures approximately 6" x 1 5/8" x 15/16" (152.4 x 41 x 24 mm)