Starrett 49500 Electronic Drop Indicator 0.6 in

Product Description

The STARRETT 49500 is an electronic drop indicator designed for high-precision measurement in machining, metrology, and quality-control applications. It provides a measurement range of 0.6 inches (15.00 mm) with an accuracy of 0.0001 inches (0.0020 mm) and a resolution of 0.00005 inches. The LCD display delivers clear digital readouts, and the included flat back allows secure, stable mounting to a magnetic base or indicator holder. Two CR2032 lithium batteries are included. This tool is used by machinists, tool-and-die technicians, and quality inspectors who require reliable dial-indicator-style measurement without analog interpretation error.

The 49500 is suited for surface plate inspection, machine tool setup, runout checks, and fixture alignment in both shop floor and laboratory environments. The flat back configuration makes it compatible with standard indicator holders and magnetic base setups. The 3/8-inch stem diameter fits the majority of common indicator holder clamps used in industrial and precision measurement work. Both inch and metric units are selectable, making it practical across mixed measurement environments.

Key Features

• 0.6-inch (15.00 mm) measurement range for versatile drop indicator applications
• Accuracy of 0.0001 inches (0.0020 mm) for high-precision measurement tasks
• Resolution of 0.00005 inches for fine incremental readings
• LCD display for clear, unambiguous digital readout
• Flat back included for compatibility with standard magnetic base holders
• Switchable inch and metric units in a single instrument
• Battery-powered with two CR2032 lithium batteries included

Compatibility

The 49500 features a 3/8-inch stem diameter, fitting the majority of standard indicator holder clamps and magnetic base accessories used in industrial precision measurement setups.

Installation Notes

Install and service this instrument only with the appropriate indicator holder or magnetic base clamp rated for a 3/8-inch stem. Ensure the mounting surface and base are clean and free of debris before securing the indicator to avoid measurement error. Do not overtighten the clamping screw on the stem, as excess clamping force can affect calibration or damage the stem. Handle with care to protect the internal measuring mechanism from shock or dropping.