Starrett 52884 Drop Indicator Hole Attachment Agd

Product Description

The STARRETT 52884 is a hole attachment accessory designed for use with AGD (American Gage Design) drop indicators. It mounts via a stem and allows the indicator to be positioned inside a bore or hole for accurate depth and runout measurements. The attachment reaches a maximum hole depth of 13/16 inches, making it suited for shallow bore inspection tasks. Licensed metrology technicians, machinists, and quality control professionals use this accessory to extend the functionality of their existing AGD indicator setups without requiring a full replacement instrument.

This attachment is used in machine shops, tool rooms, and manufacturing inspection environments where AGD drop indicators are the standard measurement tool. It is commonly installed when a technician needs to probe the interior of a bore, counterbore, or hole feature that a standard contact point cannot reach effectively. The stem mount design integrates directly with compatible AGD indicator stems for a secure, repeatable connection.

Key Features

• Stem mount design for secure attachment to AGD drop indicators
• Maximum hole depth capacity of 13/16 inches
• Compact, lightweight build at 0.125 pounds
• Single-piece accessory — no additional hardware required for basic installation
• Extends AGD indicator functionality for internal bore measurement tasks

Compatibility

Designed for use with AGD (American Gage Design) indicators as stated by the manufacturer.

Installation Notes

Installation is performed by metrology technicians or machinists familiar with AGD indicator accessories. Before attaching or removing this accessory, ensure the indicator is removed from any active measurement setup and secured to prevent drops or damage. Use only hand-tightening or the appropriate small-tool torque appropriate for precision instrument stems — do not use power tools. Verify the attachment is fully seated and locked before taking measurements to ensure reading accuracy.