Starrett 70799 Tapered Contact Point Agd Dial Indicators

Product Description

The STARRETT 70799 is a tapered contact point designed for use with AGD dial indicators. It features a 4-48 threaded shank for secure attachment and a steel construction that resists wear during repeated measurement cycles. The contact point measures 1/16 inch in diameter with a 7/16 inch contact point length and an overall length of 1/4 inch. Machinists, tool and die technicians, and metrology professionals install these contact points when setting up or replacing worn tips on dial indicator instruments used in precision measurement applications.

This contact point is suited for shop-floor measurement tasks where a tapered tip geometry is required for accessing recessed features, bore surfaces, or angled workpiece profiles. The 4-48 thread size is a standard AGD specification, making this a direct replacement for worn or damaged contact points on compatible dial indicator bodies. It is commonly used in manufacturing, inspection, and machine tool setup environments.

Key Features

• Tapered contact point style for accessing recessed or angled measurement surfaces
• Steel construction for durability and wear resistance
• 4-48 threaded shank matches AGD dial indicator thread standard
• 1/16 inch tip diameter for precise point contact
• 7/16 inch contact point length provides adequate reach for typical gauge setups
• 1/4 inch overall length for compact fitment on indicator spindles

Compatibility

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

Installation Notes

Contact point replacement is performed by machinists or metrology technicians using standard hand tools. Remove the existing contact point by unscrewing it from the indicator spindle, then thread the 70799 in by hand until snug. Avoid overtightening, as the 4-48 thread on the spindle is fine and can be damaged by excessive torque. Verify indicator zero calibration after replacing the contact point.