For over 125 years, The L. S. Starrett Company has manufactured the world's finest quality tools and  precision measuring equipment.

More recently, we have earned a reputation as the premier manufacturer of optical comparators and related products.

Optical measurement is a non-contact technique that graphically displays and measures parts with dimensions and shapes that would be hard to measure with regular tools.

The heart of these systems are precision optics, superb lighting and a highly accurate workstage. They combine to ensure bright, sharp images and exceptional accuracy.

Generally, horizontal models work well with parts that need to be fixtured, held in a vise, or on centers. Vertical models provide comparable accuracy and are ideal for parts that are placed on the glass insert of the workstage.
Vertical systems work well when the parts to be measured are flexible or soft (i.e., plastic, thin stampings or electrical components).

The versatile Starrett line includes optical systems from 12-300 (300-750mm) screen diameters, horizontal and vertical models and a wide range of special machines.

We offer choices of lens magnification, manual, motor-driven and CNC workstage travel, and with mechanical or electronic readouts.