you just need to put the ring into the chuck and tighten it, find the characters you want to engrave, move the pen and handle at the same time, and draw lightly. then the letters will be successfully engraved on the ring! this jewelry stamp is designed for quick and easy engraving on the inside of various rings, which is almost indistinguishable from hand engraving. once you have it, you can create your personalized ring. the ring engraving machine is equipped with a dial with a diameter of about 5 inches, supporting english letters and arabic numerals. you can engrave your english name, anniversary date or main ingredients of the product etc. on the inner hole of the ring. the ring engraving machine press has a full metal body and a solid base, which is sturdy and durable. what's more, the adjustable foot height can keep the machine in balance. the inner ring engraving machine is equipped with a steel engraving head, which is strong and sharp. it can engrave gold, silver and other materials. it is automatically centered when engraving, with equal spacing and uniform depth to make sure accurate engraving.