Starrett 70805 Flat Contact Point 4-48 Drop Indicator

Product Description

The STARRETT 70805 is a flat contact point designed for use with drop-style dial indicators in precision measurement applications. Machined from steel, it threads onto compatible dial indicator spindles using a 4-48 thread and provides a flat contact surface for accurate linear measurement. The contact point measures 9.53 mm in diameter and 2.58 mm (approximately 3/32 inch) in length. This part is installed by metrology technicians, machine shop personnel, and quality control professionals who require consistent, repeatable surface contact during indicator setup and inspection routines.

This contact point is suited for use in dimensional inspection, fixture alignment, and surface measurement tasks in both shop floor and laboratory environments. It is a direct replacement or spare accessory for technicians maintaining dial indicator sets. The compact flat-tip geometry makes it appropriate for measurements on flat or broad workpiece surfaces where a pointed or spherical tip would be unsuitable.

Key Features

• Flat contact point style for broad, flat surface measurement applications
• Steel construction for durability and wear resistance
• 4-48 threaded shank for secure attachment to compatible indicator spindles
• 9.53 mm contact face diameter provides stable surface contact
• 2.58 mm contact point length (approximately 3/32 inch)
• Sold individually — package quantity of 1

Compatibility

Designed for use with 650 and 651 Back Plunger Dial Indicators and AGD Dial Indicators as stated by the manufacturer.

Installation Notes

This contact point is installed and serviced by metrology or mechanical technicians familiar with dial indicator maintenance. Before replacing a contact point, ensure the indicator is removed from any active measurement fixture and the spindle is fully retracted. Use the correct thread engagement — avoid over-tightening, which can damage the 4-48 spindle threads. Verify indicator calibration after any contact point change per your facility or quality system procedures.