GRS 024-290 Optia LED Ring 110V Engraving & Stonesetting 92:1 (nominal 4:1) Speed Reduction

92:1 (nominal 4:1) Speed Reduction Output speed approximately 1/4 of indicated control box speed Torque Increase Approximately 4× multiplication Added Length 1

polished closure for bracelets and chains

Zona fine saw (42 TPI blade)

the PC200 functions as a simple on/off switch that activates the motor at a preset speed — ideal for repetitive tasks where consistent speed is preferred over manual adjustment

GRS 024-290 Optia LED Ring 110V Engraving & Stonesetting 92:1 (nominal 4:1) Speed ReductionThe 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