Spi MS170301012 Drop Indicator for Agd 1 Indicators

Product Description

The SPI MS170301012 is a drop indicator dial indicator accessory designed for use with AGD 1 style dial indicators. Drop indicators, also called back plunger indicators, measure displacement along an axis parallel to the dial face rather than perpendicular to it. This makes them well suited for tight spaces where a standard plunger-style indicator cannot be positioned at the correct angle. Weighing just 0.11 pounds, the unit is compact and lightweight, with an overall footprint of 2.5 inches by 2.5 inches and a height of 1.5 inches. Machinists, calibration technicians, and precision measurement professionals will find this accessory a practical addition to their AGD 1 indicator setups.

This drop indicator is intended for precision measurement applications in machine shops, manufacturing facilities, and metrology environments. It pairs specifically with AGD 1 dial indicators and is commonly used for runout checks, surface flatness verification, bore alignment, and part inspection on mills, lathes, and surface plates. It is sold individually and is suitable for both bench and in-machine measurement tasks where space constraints or measurement angle requirements call for a back plunger configuration.

Key Features

• Back plunger design measures displacement parallel to the dial face for use in confined spaces
• Compatible with AGD 1 dial indicators as a direct accessory
• Compact size at 2.5 inches by 2.5 inches by 1.5 inches tall
• Lightweight construction at 0.11 pounds for easy handling and mounting
• Sold as a single unit with no minimum order quantity above one

Compatibility

Designed for use with AGD 1 style dial indicators as stated by the manufacturer accessory classification.

Installation Notes

This accessory should be installed by a qualified metrology technician or machinist familiar with AGD-style indicator setups. Ensure the indicator and any holding fixture are firmly secured before taking measurements to avoid false readings. Do not exceed the travel range of the paired AGD 1 indicator, and verify that all clamping surfaces are clean and free of debris before mounting.