This inside ring fixture from Glardon Vallorbe® by Syen-Set securely holds a ring in position while you hand-engrave dates, initials, names or symbols into the interior surface. The fixture features six threaded holes and includes three threaded clamps that help you accommodate any ring shape. The holder wheel rotates 360°, allowing you to continue working without repositioning your vise (available separately) or the ring. This inside ring fixture is ideal for work under a microscope.