Features Rate a unique lasting impression with the STONY Number and Letter Punch Stamp set by making an imprint on wood, metal/soft metal, plastic, leather, and more. Drop forged from High-Quality Steel this is the perfect Tool for all engraving work. Heavy Duty Drop Forged Steel Body. Capital Alphabets for Easy Legibility. Grey Finish Steel Number Stamp. Size / 6 mm Head Weight / 80 gms