Spi 40-081-2 Optical Comparator Chart Reticle 1 in 7x

Product Description

The SPI 40-081-2 is an optical comparator chart and reticle designed for use with 7x magnification comparator systems. It measures 1 inch in diameter and fits directly into the eyepiece or stage of compatible optical comparators. This type of reticle overlays a precision reference grid or measurement scale onto the magnified image, allowing machinists, quality control inspectors, and metrologists to perform accurate dimensional inspection of small parts. It is a standard consumable tool in any metrology-equipped shop or inspection department.

This chart and reticle is suited for dimensional inspection tasks in manufacturing, toolroom, and quality assurance environments. It is used wherever fine part features must be verified against a known reference scale at 7x magnification. Typical applications include thread form inspection, radius verification, and profile comparison on machined or stamped components. It is installed and used by machinists, QC technicians, and metrologists working with bench-mounted optical comparators.

Key Features

• Designed for 7x magnification optical comparator systems
• 1 inch overall diameter fits standard comparator eyepiece or stage mounts
• Provides a reference overlay for dimensional and profile inspection
• Compact single-piece format for straightforward installation and replacement

Compatibility

Designed as an OEM-style replacement reticle for optical comparators accepting a 1 inch diameter chart and reticle at 7x magnification.

Installation Notes

Reticle installation is typically performed by a machinist or metrology technician. Power down and secure the comparator before handling optical components. Handle the reticle by its edges only to avoid contaminating the optical surface. Consult the comparator manufacturer's service documentation for proper seating and alignment procedures specific to your instrument.