Spi CMS160713017 Electronic Drop Indicator 2in Digital

Product Description

The SPI CMS160713017 is a digital electronic drop indicator designed for precision dimensional measurement in machine shop, toolroom, and quality control environments. It provides a maximum measurement range of 2 inches (50.00 mm) with a resolution of 0.000050 inches (0.0010 mm) and an accuracy of 0.000250 inches (0.0060 mm). The digital display delivers clear, direct readings in both inch and metric units. The center lug flat back mounting configuration allows secure attachment to magnetic bases, indicator holders, and transfer stands. This instrument is handled and calibrated by metrology technicians, machinists, and quality assurance professionals.

The CMS160713017 is suited for surface measurement, runout inspection, part comparison, and setup verification on machining centers, surface plates, and inspection fixtures. The dual-unit readout supports shops operating in both inch and metric standards. The included NIST traceability certification makes this indicator appropriate for documented quality control processes and environments subject to calibration audit requirements. The 3/8-inch stem diameter is compatible with standard indicator holders and collet-style clamps found on most shop-floor measurement setups.

Key Features

• Digital readout with 0.000050-inch (0.0010 mm) resolution for fine measurement tasks
• Accuracy of 0.000250 inches (0.0060 mm) across the full 2-inch range
• Dual-unit display reads in both inches and millimeters
• Center lug flat back design for use with magnetic bases and standard indicator holders
• 3/8-inch stem diameter fits common collet clamps and dovetail holders
• NIST traceability certification included for calibration documentation compliance
• CR2032 battery — a widely available coin cell — powers the digital display

Compatibility

The 3/8-inch stem diameter and center lug flat back configuration are compatible with standard indicator holders, magnetic base clamp assemblies, and universal dial indicator stands that accept this stem size.

Installation Notes

Installation is performed by machinists, metrologists, or quality technicians. Secure the 3/8-inch stem in a collet or clamp-style holder and verify the contact point is perpendicular to the measured surface before zeroing. Avoid side-loading the stem during measurement, as lateral force can affect accuracy and damage the spindle mechanism. Handle the instrument carefully and store it protected from impact, moisture, and temperature extremes to maintain calibration integrity.