Spi CMS160713018 Electronic Drop Indicator 0.5 in

Product Description

The SPI CMS160713018 is a digital electronic drop indicator designed for precision dimensional measurement in machining, metrology, and quality control applications. It provides a maximum measurement range of 0.5 inches (12.70 mm) with a resolution of 0.0005 inches (0.0100 mm) and an accuracy of 0.0008 inches (0.0200 mm). The indicator features a center lug flat back mount and a digital display for direct readout in both inch and metric units. It ships with a NIST traceability certification, making it suitable for calibrated inspection environments. Machinists, quality technicians, and metrologists use this tool for surface variation checks, runout measurement, and part verification.

This drop indicator is suited for use on surface plates, magnetic bases, and precision fixtures in machine shops, manufacturing facilities, and inspection labs. The dual-unit readout supports shops working to both inch and metric tolerances. The 3/8-inch stem diameter is compatible with standard indicator holders and magnetic base clamps. The center lug flat back configuration allows secure mounting in typical drop indicator setups where a vertical or angled approach to the workpiece is required.

Key Features

• Digital display with inch and metric readout in a single unit
• Maximum measurement range of 0.5 inches (12.70 mm)
• Resolution of 0.0005 inches (0.0100 mm) for fine measurement discrimination
• Accuracy of 0.0008 inches (0.0200 mm)
• Center lug flat back mounting for compatibility with standard indicator holders
• NIST traceability certification included for calibrated inspection use
• Powered by CR2032 battery

Compatibility

Designed for use with standard 3/8-inch stem indicator holders, magnetic bases, and precision fixture arms commonly found in machine shop and inspection environments.

Installation Notes

Mount the indicator using a holder or clamp that accepts a 3/8-inch stem, ensuring the stem is fully seated and the locking screw is snug before taking measurements. Position the contact point perpendicular to the measured surface to avoid cosine error. Zero the display after securing the indicator in position and before beginning any measurement sequence. Replace the CR2032 battery when the low-battery indicator appears to maintain measurement accuracy.