Mitutoyo 2804A-10 Dial Drop Indicator 0.0001 in Graduation

Product Description

The MITUTOYO 2804A-10 is a plunger-style dial drop indicator designed for precision dimensional measurement in machine shop, toolroom, and quality control applications. It covers a measuring range of 0 to 0.05 inches with a dial graduation of 0.0001 inches per division and a range of 0.01 inches per revolution, allowing technicians to detect very fine surface variation or workpiece deviation. Accuracy is rated at plus or minus 0.0002 inches. The indicator features jeweled bearings for smooth, consistent plunger travel and a lug back mount for secure fixturing to indicator holders and transfer gages.

This indicator is suited for surface plate inspection, fixture checking, machine tool setup, and incoming quality inspection tasks where tight tolerances must be verified quickly and repeatedly. The 0-10 dial reading scale is easy to read at a glance, and the clamp-on base mount type makes it compatible with standard indicator holding arms and magnetic base setups. It is typically used by machinists, tool and die makers, quality technicians, and calibration professionals working to close dimensional tolerances in both production and prototype environments.

Key Features

• Measuring range of 0 to 0.05 inches with 0.0001 inch graduation for high-resolution readings
• Accuracy rated at plus or minus 0.0002 inches
• Jeweled bearing construction supports smooth, repeatable plunger movement
• Lug back design with clamp-on base mount type for versatile fixturing
• 0.01 inches per revolution dial travel for easy incremental reading
• 0-10 dial reading scale for straightforward indicator zeroing and deviation tracking

Compatibility

Designed as an OEM-style drop indicator compatible with standard lug back indicator holders, clamp-on mounting arms, and magnetic base setups common in machine shop and inspection environments.

Installation Notes

Installation and setup should be performed by a qualified machinist or metrology technician familiar with precision measuring instruments. Secure the lug back to a rigid indicator holder or magnetic base arm before use to prevent movement during measurement. Avoid applying side loads to the plunger spindle, as this can affect accuracy and damage jeweled bearings. Handle the instrument carefully and store it in its case when not in use to protect the dial face and plunger mechanism.