Spi CMS160714025 Electronic Drop Indicator 1 in Digital

Product Description

The SPI CMS160714025 is a digital electronic drop indicator designed for precise dimensional measurement in machining, inspection, and quality control applications. It features a 1-inch maximum measurement range with a resolution of 0.000050 inches and an accuracy of 0.000200 inches, making it suitable for high-tolerance work on production floors and in metrology labs. The center lug flat back mount allows secure fixture to magnetic bases and surface gauges. A CR2032 battery powers the digital display, and the unit ships with a NIST traceability certification. Machinists, toolmakers, and quality technicians are the primary users of this instrument.

This drop indicator is used in surface plate inspection, machine tool setup, runout measurement, and part alignment work in both job shop and production environments. The dual-unit readout supports both inch and metric measurement, allowing use across mixed-standard workflows. The 3/8-inch stem diameter is compatible with standard indicator holders and transfer gauges used in general metrology setups. At 0.75 pounds, the unit is lightweight enough for handheld transfer work as well as stand-mounted applications.

Key Features

• Digital display with 0.000050-inch resolution for high-precision readings
• 1-inch maximum measurement range with 0.000200-inch accuracy
• Center lug flat back mount for compatibility with standard magnetic bases and surface gauges
• Reads in both inch and metric units
• NIST traceability certification included for regulated inspection environments
• CR2032 battery powered with measuring force of 1.50 N

Compatibility

Designed for use with standard indicator holders and transfer gauge setups accepting a 3/8-inch stem diameter. Compatible with magnetic bases, articulating arms, and surface gauge spindle clamps commonly used in general metrology and machine shop inspection fixtures.

Installation Notes

Mounting and zeroing should be performed by a qualified machinist or metrology technician familiar with indicator setup procedures. Secure the center lug firmly in the holder before zeroing the display to avoid measurement drift. Handle the contact point and stem with care to avoid shock loads that can affect calibration. Protect the unit from coolant and grinding dust during shop use to maintain accuracy and battery life.