Mitutoyo 2356A-10 Dial Drop Indicator 0.25 in Range

Product Description

The MITUTOYO 2356A-10 is a dial drop indicator designed for precision dimensional inspection in toolroom, machining, and quality control environments. It delivers a measurement range of 0.25 inches with a dial graduation of 0.0001 inches per division and a range of 0.01 inches per revolution, making it suitable for high-resolution comparative measurements. The lug back mounting style allows secure attachment to indicator holders and magnetic bases. Accuracy is rated at 0.0001 inches. A built-in revolution counter tracks cumulative travel across the full 0.25-inch range. This instrument is installed and used by machinists, metrologists, and quality technicians.

The MITUTOYO 2356A-10 is used in precision measurement applications including runout inspection, surface flatness checks, and part-to-part comparative gauging. The 57 mm white dial face provides clear readability under shop lighting. The 3/8-inch stem diameter fits standard indicator holders and fixture arms commonly found in machine shops and inspection departments. It is suited for both bench inspection setups and on-machine measurement tasks requiring fine resolution and repeatable results.

Key Features

• 0.25-inch total measurement range with 0.0001-inch graduation for high-resolution readings
• Jeweled bearing construction for smooth spindle travel and long service life
• Lug back mounting for compatibility with standard indicator holders and magnetic bases
• Built-in revolution counter tracks total travel across the full range
• 57 mm white dial face for clear, high-contrast readability
• Meets ANSI/AGD standards for dial indicator performance

Compatibility

Designed as an OEM-style drop indicator compatible with standard 3/8-inch stem indicator holders, magnetic base arms, and fixture-mounted gauge setups used in toolroom and quality control applications.

Installation Notes

This indicator is installed by machinists or quality technicians using a standard indicator holder or magnetic base clamp that accepts a 3/8-inch stem. Ensure the stem is fully seated and the clamping screw is snug before zeroing the dial. The spindle axis should be aligned perpendicular to the measured surface to minimize cosine error. Handle the instrument carefully to avoid dropping, as impact can damage the jeweled bearing and affect calibration.