GRS 024-290 Optia LED Ring 110V Arbe from Coarse (0) to XXXFine

from Coarse (0) to XXXFine (10) — higher number indicates finer cut

Sized to a standard USA ring size 6-1/2

A small version of the Marquise 60% ratio Bezel Block is also available

193 Ball Bur 1

Holes measure 1/4" / 6

GRS 024-290 Optia LED Ring 110V Arbe from Coarse (0) to XXXFineThe GRS 024 290 Optia LED Ring Light (110V) brings natural spectrum illumination to your microscope setup. Designed for professional jewelers, engravers, and bench craftspeople, this ring light delivers adjustable intensity to help you see your work clearly under magnification. The three adjustable threads make it compatible with most standard microscope configurations, allowing for straightforward installation at the bench. Features Natural spectrum