100 Brass Round 5/8 Inch Metal Stamping Blanks 16mm Diameter Circle Brass Discs Round Brass Metal Stamping Blanks 5/8 Inch (16 mm) Diameter Circle Brass Stamping Blanks Brass Discs are .33 mm Thick - Perfect for Metal Stamping Practice Blanks Brass Metal Stamping Blanks Require Polishing and Finishing No Pre-punched Hole