Starrett 64633 Drop Indicator Contact Point Extension

Product Description

The STARRETT 64633 is a steel contact point extension designed for drop indicators. It extends the reach of the contact point on AGD dial indicators, allowing technicians to measure in recessed areas, deep bores, or locations where the standard stylus cannot reach. The extension features a 4-48 thread size for secure attachment and measures 1 inch in length. Machinists, tool and die makers, and precision measurement technicians install this type of accessory during setup, inspection, and calibration work on machine tools and fixtures.

This contact point extension is suited for use in machine shops, manufacturing facilities, and maintenance environments where AGD-style dial indicators are used for dimensional inspection. It is a direct replacement accessory for worn or missing contact point extensions on existing indicator setups. The 1 inch length provides added reach without introducing significant flex or measurement error when used correctly with a properly mounted indicator.

Key Features

• 4-48 thread size for compatibility with AGD dial indicator contact point stems
• Steel construction for durability and resistance to wear in shop environments
• 1 inch length extends stylus reach into confined or recessed measurement locations
• Lightweight design at 0.5 pounds minimizes added mass on the indicator tip
• Single-piece package quantity for individual replacement use

Compatibility

Designed for use with AGD dial indicators that accept 4-48 threaded contact point accessories.

Installation Notes

Installation is performed by precision measurement technicians or machinists. Thread the extension onto the contact point stem of the indicator by hand until snug, taking care not to cross-thread or overtighten. Remove the indicator from the measuring setup before changing contact point accessories. Verify indicator calibration after installing any contact point extension, as added length can affect measurement accuracy if not accounted for in the setup.