Spi 31-166-2 Electronic Digital Caliper 0-6 in Stainless

Product Description

The SPI 31-166-2 is a battery-powered electronic digital caliper with a measurement range of 0 to 6 inches (150 mm) and a resolution of 0.0005 inches. Accuracy is rated at 0.0015 inches. The beam and jaws are constructed from hardened stainless steel, providing corrosion resistance and long service life in shop and field environments. Jaw adjustment is controlled by a thumb wheel for fine, repeatable positioning. Licensed trades, machinists, HVAC technicians, and plumbers use this tool for precise inside and outside diameter measurements during fabrication, installation, and inspection work.

The 31-166-2 is suited for residential and commercial trade applications where precise linear measurement is required. The caliper measures both inside and outside dimensions using its dual-jaw configuration, and the integrated depth rod extends the tool to rod and step measurements. It ships with a protective carrying case. Typical use cases include pipe fitting, ductwork fabrication, equipment inspection, and component verification on the job site or in a shop setting.

Key Features

• 0 to 6 inch (150 mm) measurement range covers most common trade measurements
• 0.0005 inch resolution with 0.0015 inch accuracy for precise readings
• Hardened stainless steel beam and jaws resist wear and corrosion
• Inside and outside jaw configuration for versatile measurement tasks
• Integrated depth measurement rod for step and blind-hole measurements
• Thumb wheel jaw adjustment for controlled, repeatable positioning
• Powered by LR44 battery; includes protective carrying case

Compatibility

Designed as a general-purpose electronic digital caliper suitable for trade and light industrial measurement applications requiring a 0 to 6 inch range.

Installation Notes

No installation is required for this measuring instrument. Before use, zero the caliper with jaws fully closed to confirm calibration. Keep the measuring surfaces clean and free of debris to maintain accuracy. Store in the included case when not in use to protect the measuring surfaces and electronics.