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The SPI MS170301013 is a drop indicator accessory designed for use with AGD 1 dial indicators. It serves as a compatible add-on component that extends the functionality of standard AGD 1 indicator setups used in precision measurement and inspection work. Measuring 2.5 inches in length, 2.5 inches in width, and 1.5 inches in height, the unit is compact and lightweight at 0.11 pounds. This accessory is handled by machinists, toolroom technicians, and metrology professionals who require accurate, repeatable measurement in layout, inspection, and setup applications.
This drop indicator accessory fits into precision measurement environments where AGD 1 dial indicators are the standard tooling. Typical applications include surface plate inspection, machine tool setup, fixture verification, and part layout. The compact form factor makes it well suited for close-tolerance work on inspection benches and machining centers where space around the workpiece is limited. It is sold individually and is appropriate for both production floor and toolroom use.
Designed for use with AGD 1 dial indicators as stated by the manufacturer.
Installation and attachment of this accessory should be performed by a qualified machinist or metrology technician familiar with AGD 1 indicator systems. Ensure the indicator and any associated mounting hardware are fully secured and zeroed before taking measurements. Do not overtighten attachment points, as this can affect indicator accuracy or damage the accessory seating.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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