Spi 30-459-2 Caliper O-ring Groove Gage 3 Pc Set

Product Description

The SPI 30-459-2 is a 3-piece caliper O-ring groove gage designed to measure O-ring groove dimensions with an accuracy of 0.001 inch. The set covers a measurement range of 0.200 inch minimum to 6.000 inch maximum, making it suitable for a wide variety of groove sizes encountered in fluid system maintenance and mechanical assembly work. With an overall length of 6 inches, the gage fits into confined areas where standard calipers may not reach groove geometry accurately. Machinists, maintenance technicians, and fluid-system specialists use this tool to verify groove width and depth before O-ring installation.

This gage set is used in applications where O-ring groove geometry must be confirmed prior to sealing system assembly or during maintenance inspection. It is well suited for plumbing, hydraulic, pneumatic, and general mechanical service work where improper groove dimensions can cause seal failure. The 3-piece configuration allows the technician to address a broad range of groove profiles without switching to a different tool set.

Key Features

• Measurement range from 0.200 inch to 6.000 inch covers most standard O-ring groove sizes
• Accuracy of 0.001 inch for precise groove dimension verification
• 6 inch overall length provides reach into recessed groove locations
• 3-piece set included for versatility across multiple groove profiles
• Compact and lightweight at 0.35 pounds for easy field or shop use

Compatibility

Designed as a general-purpose O-ring groove measurement tool compatible with standard groove formats found in plumbing, hydraulic, and pneumatic assemblies across residential and commercial applications.

Installation Notes

This is a precision measurement tool, not an installed component. Before use, ensure the workpiece is clean and free of debris that could affect gage contact and reading accuracy. Handle gage blades carefully to avoid dropping or impacting them against hard surfaces, as this can affect calibration. Store the set in its case when not in use to protect the measuring surfaces.