Starrett 12334 Dial Test Indicator 0.8mm Horizontal

Product Description

The STARRETT 12334 is a horizontal-style dial test indicator designed for precision measurement in machining, inspection, and metrology applications. It features a jeweled bearing movement and a precision gear-driven design that delivers accurate readings across a 0.8 mm total range, with a 0-40-0 bidirectional dial graduated at 0.01 mm per division. The 1-1/4 inch diameter dial face is yellow with high-contrast markings for easy reading under shop-floor lighting. The satin chrome finish and narrow body make it well suited for close-tolerance setups where access is limited. This indicator weighs 0.75 pounds and ships with two dovetail clamps, a contact point, and a protective case.

This indicator is used in precision machining shops, tool rooms, quality control stations, and production inspection environments. It mounts via a standard dovetail clamp, making it compatible with typical indicator holders, magnetic bases, and surface plate setups. The automatic contact point reversal and adjustable replaceable contact point reduce setup time when switching measurement directions. It is appropriate for both horizontal surface and feature-inspection tasks performed by machinists, metrologists, and quality technicians.

Key Features

• 0.8 mm total measurement range with 0.01 mm dial graduation for fine-resolution readings
• Jeweled bearing movement for smooth, repeatable gear-driven operation
• 0-40-0 bidirectional dial reads in both directions without resetting
• Contact point reverses automatically and is adjustable and replaceable
• Dovetail mount type accepts standard indicator holders and clamp assemblies
• Narrow body and satin chrome finish suit tight-access inspection setups

Compatibility

Designed for use with standard dovetail-style indicator holders and clamping systems common to surface plates, magnetic bases, and machine tool inspection fixtures. Part of the STARRETT 3909 Series.

Installation Notes

Installation is performed by machinists or metrology technicians using a standard dovetail clamp and holder. Secure the clamp firmly before zeroing the indicator to prevent drift during measurement. Avoid applying side loads to the contact point spindle beyond the specified measurement range, as this can damage the jeweled movement. No electrical connections or power sources are required for operation.