Starrett 70797 Drop Indicator Contact Point 4-48 Agd

Product Description

The STARRETT 70797 is a steel drop indicator contact point designed for use with AGD dial indicators. It features a 4-48 thread size, a diameter of 13/64 inches (5.16 mm), and a contact point length of 5/32 inches (3.97 mm). The overall length is 1/4 inch (6.30 mm). This contact point is a special form style, intended for precise measurement applications where accurate surface contact is critical. It is installed and used by machinists, tool and die technicians, quality control inspectors, and calibration professionals working with AGD-style dial indicators on inspection setups, fixtures, and surface plates.

This contact point fits AGD dial indicators and is suited for dimensional inspection work in machine shops, manufacturing facilities, and metrology labs. Its compact overall length makes it appropriate for close-tolerance measurements in tight spaces. The steel construction provides durability for repeated contact cycles in shop environments. It is packaged and sold individually, making it a straightforward replacement for worn or damaged contact points on existing AGD dial indicators.

Key Features

• 4-48 thread size for direct installation into AGD dial indicator stems
• Steel construction for wear resistance and consistent contact geometry
• 13/64 inches (5.16 mm) diameter contact face
• 5/32 inches (3.97 mm) contact point length
• 1/4 inch overall length for compact fitment in tight measurement setups
• Special form dial indicator style for precise surface contact

Compatibility

Designed for use with AGD dial indicators requiring a 4-48 threaded contact point.

Installation Notes

Installation is performed by machinists or metrology technicians using the appropriate thread engagement for 4-48 fasteners. Remove the existing contact point before installation and ensure the indicator stem threads are clean and undamaged. Do not overtighten the contact point, as this can damage the fine 4-48 threads on the indicator stem. Verify indicator calibration and zeroing after replacing the contact point.