Starrett 52724 Drop Indicator Hole Attachment Agd

Product Description

The STARRETT 52724 is a hole attachment designed for use with AGD (American Gage Design) dial indicators in drop indicator configurations. It mounts via a stem and allows the indicator to reach into a bore or hole to take accurate internal measurements. The attachment supports a maximum hole depth of 1.688 inches, making it suitable for shallow-bore inspection work. Weighing 0.188 pounds, it is a compact, lightweight accessory that integrates directly with standard AGD indicator stems. Machinists, tool and die technicians, and quality control inspectors use this type of attachment when standard contact points cannot reach the measurement surface.

The 52724 hole attachment is intended for shop-floor and inspection-bench applications where AGD dial indicators are used to measure bore depth, hole alignment, or surface deviation inside a drilled or machined hole. It is a direct accessory for AGD indicators and is well suited for precision measurement tasks in manufacturing, machining, and metrology environments where consistent stem-mount repeatability is required.

Key Features

• Hole attachment accessory compatible with AGD dial indicators
• Stem mount design for secure, repeatable indicator attachment
• Maximum hole depth reach of 1.688 inches
• Lightweight construction at 0.188 pounds
• Compact form factor suitable for confined bore measurement applications

Compatibility

Designed for use with AGD (American Gage Design) dial indicators that accept standard stem-mount accessories.

Installation Notes

This attachment is installed by metrology technicians or machinists as part of a dial indicator setup. Before attaching or removing indicator accessories, ensure the indicator is removed from any active measurement fixture or clamping device to avoid damage to the indicator spindle. Use appropriate indicator mounting tools and verify stem seating before taking measurements. Follow standard shop practices for handling precision measuring instruments.