1 inch aluminum stamping blanks. Raw material. 25 pack. Diameter: 1.0 inch (25.4mm). Thickness: 14 gauge (.063" / 1.6mm). 3mm hole diameter. Perfect for stamping, etching, engraving, valve tags, and badges. These are raw aluminum blanks and can be further finished for an even more professional look. 1" round aluminum stamping blanks - Raw aluminum material - 25 pack Diameter: 1 inch (25.4mm) - Thickness: 14 gauge (.063" / 1.6mm) - Hole: 3/32" (3mm) Perfect for stamping, etching, and engraving projects - Also used as valve tags or badges Discs have been deburred - Please for our full selection of stamping blank sizes brand 1 inch aluminum blanks - Thanks for shopping with