Personalize the inside of rings with results nearly indistinguishable from hand engraving, thanks to an all-metal body and solid base that stay steady while you work. Adjustable foot height keeps the machine balanced on any surface, and a sharp diamond nib carves gold, silver, and other metals with precise, automatically centered lettering. The double-sided lettering plate offers two character sizes, 1.5mm and 2.0mm, supporting both English letters and Arabic numerals on the dial. Operation is simple: secure the ring in the chuck, select your character, then move the pen and handle together with a gentle stroke to engrave the letters. A 360-degree rotary jaw positions each ring exactly where you need it, making this stamper a practical choice for jewelers and hobbyists creating custom, personalized pieces.