Starrett 70801 Agd Indicator Contact Point 4-48 Thread

Product Description

The STARRETT 70801 is a hardened steel contact point designed for use with AGD (American Gage Design) dial indicators. This special form contact point features a 4-48 threaded stem for secure attachment to compatible indicator spindles. Hardened steel construction provides resistance to wear and deformation during repeated measurement cycles, making it suitable for high-use environments in machine shops, fabrication facilities, and field inspection work. Metrology technicians and precision measurement professionals install this contact point as a replacement or alternate-form tip on AGD-standard dial indicators.

This contact point is used in dimensional inspection and quality control applications where a specific contact geometry is required. The special form profile suits situations where a standard ball-end tip is not appropriate for the surface being measured. Typical applications include inspection of machined parts, surface profiling, and setup work on mills, lathes, and grinding machines. The 4-48 thread is the AGD standard for dial indicator contact points, making this a straightforward drop-in replacement in most setups.

Key Features

• Hardened steel construction for extended wear life under repeated contact
• 4-48 threaded stem conforming to AGD standard for dial indicators
• Special form contact geometry for applications requiring a non-standard tip profile
• Lightweight at 0.11 pounds, minimizing added mass on the indicator spindle
• Direct replacement contact point for AGD-style dial indicators

Compatibility

Designed as an OEM-style replacement contact point for AGD-standard dial indicators accepting a 4-48 threaded stem.

Installation Notes

Contact points are installed and removed by hand or with a light wrench on the 4-48 threaded stem. Ensure the indicator spindle threads are clean and free of debris before installation. Do not overtighten the contact point, as this can damage the spindle threads or affect indicator calibration. After installation, verify indicator zero and repeatability before returning the instrument to service.

Technical Specifications

• Thread Size: 4-48
• Material: Hardened Steel
• Contact Point Type: Special Form
• Standard: AGD (American Gage Design)
• Weight: 0.11 pounds

Standard Information

• Brand: STARRETT
• Manufacturer Part Number: 70801