Mitutoyo 100797 Lug Drop Indicator Back Agd 3 4

Product Description

The MITUTOYO 100797 is a lug drop indicator back designed as a replacement or application-specific mounting back for dial indicators. This component attaches to the rear of a dial indicator and provides the lug mount interface needed to secure the indicator to a stand, arm, or fixture. It measures 6.5 millimeters in back diameter and 11.5 millimeters in back thickness. Machinists, metrologists, and quality control technicians install this part when the original indicator back is damaged or when a special mounting configuration requires a different back style. The part ships individually and weighs 1 pound.

This lug drop back is used in precision measurement setups where a dial indicator must be mounted via a lug-style attachment point. It is suited for bench inspection, surface plate work, and machine tool setups. Per the supplier data, it is compatible with AGD Group 3 and AGD Group 4 dial indicators, making it applicable across a range of standard industrial-grade indicators used in manufacturing and quality assurance environments.

Key Features

• Lug drop style back for secure indicator mounting to stands and articulating arms
• Back diameter of 6.5 millimeters fits AGD Group 3 and 4 indicator bodies
• Back thickness of 11.5 millimeters provides correct standoff geometry for standard lug mounts
• OEM-style replacement suitable for special application mounting configurations
• Single-unit packaging for individual replacement needs

Compatibility

Designed for use with AGD Group 3 and AGD Group 4 dial indicators as stated by the manufacturer. Verify back diameter and lug geometry against the existing indicator body before installation.

Installation Notes

Installation is performed by qualified metrology technicians or machinists familiar with dial indicator assembly. Remove the indicator from any active measurement setup before disassembling the back. Use appropriate spanner tools or back removal tools designed for dial indicators to avoid damaging the indicator case or movement. Verify that the replacement back seats fully and that the lug orientation aligns with the intended mounting fixture before returning the indicator to service.