Mitutoyo 543-576 Electronic Drop Indicator 0-0.5 in

Product Description

The MITUTOYO 543-576 is an electronic drop indicator designed for precision dimensional measurement in industrial and metrology applications. Operating over a range of 0 to 0.5 inches (12.70 mm), it delivers an accuracy of 0.000120 inches (0.0030 mm) with a fine resolution selectable at 0.00005 or 0.0005 inches. The LCD display provides clear digital readout in both inch and metric units. Measuring force is rated at 2.00 N, keeping contact pressure consistent and repeatable across measurement cycles. The unit ships with a SR44 battery installed and includes the IDN/B Digimatic Indicator. It is part of the MITUTOYO 543 Series and meets ANSI standards.

The 543-576 is suited for use in machine shops, quality control labs, and production floor inspection stations where repeatable, high-accuracy drop measurements are required. Its 3/8-inch (0.3750 inches) stem diameter fits standard indicator holders and magnetic base arms commonly found in toolroom and fixture setups. The selectable inch and metric readout makes it practical for shops working across both measurement systems. Machinists, quality technicians, and metrology professionals are the primary users of this instrument.

Key Features

• Measurement range: 0 to 0.5 inches (0 to 12.70 mm)
• Accuracy: 0.000120 inches (0.0030 mm) per ANSI standards
• Dual resolution: 0.00005 or 0.0005 inches (0.001 or 0.01 mm)
• LCD display with selectable inch and metric readout
• 3/8-inch stem diameter fits standard indicator holders and magnetic bases
• Battery-powered with SR44 cell included; no external power source required

Compatibility

Designed for use with standard 3/8-inch stem indicator holders, magnetic bases, and test fixture arms. Compatible with Digimatic data output systems as part of the MITUTOYO 543 Series.

Installation Notes

Installation is performed by qualified machinists or metrology technicians using a standard indicator holder or magnetic base arm. Ensure the stem is fully seated and the locking screw is tightened before zeroing the display. Avoid side-loading the stem during measurement, as lateral force can affect accuracy and damage the mechanism. Power down or remove the battery when the unit will be stored for extended periods to preserve battery life.