Starrett 12673 Dial Test Indicator 0.8mm Horizontal

Product Description

The STARRETT 12673 is a horizontal-style dial test indicator designed for precision measurement in machining, tooling, and metrology applications. The indicator reads a maximum of 0.8 mm with a 0-40-0 balanced dial graduation of 0.01 mm per division, making it suitable for detecting small deviations in surface runout, alignment, and part setup. The 1-9/16 inch diameter yellow dial face provides high contrast for easy reading under shop floor conditions. Two contact points are included. This type of indicator is typically installed by machinists, tool and die makers, and quality control technicians.

The 12673 is used in horizontal indicator applications where a low-profile sensing arm must track surface variation along a workpiece. Common scenarios include setup on a surface plate, spindle runout checks on a lathe or mill, and fixture alignment verification. The horizontal style allows contact at angles where a standard plunger-type indicator would not reach. The yellow dial is useful in environments where ambient lighting makes standard white dials difficult to read.

Key Features

• 0.8 mm maximum measurement range with 0-40-0 balanced dial reading
• 0.01 mm dial graduation for fine measurement resolution
• Horizontal indicator style for low-clearance and angled contact applications
• 1-9/16 inch diameter yellow dial face for high-contrast readability
• Includes 2 contact points for versatile tip selection

Compatibility

Designed as a standard horizontal dial test indicator for use with compatible indicator holders, magnetic bases, and articulating arm setups common in machine shop and inspection environments. No specific compatible model numbers were provided in the product data.

Installation Notes

Dial test indicators are installed by machinists and metrology technicians using a suitable indicator holder or magnetic base. Before mounting, ensure the workpiece and machine spindle or fixture are fully stopped and de-energized where applicable. The contact point should be set to engage the surface at the correct angle to avoid cosine error. Do not over-deflect the indicator beyond its stated measurement range, as this can damage the movement.