Mitutoyo 131317 Drop Indicator Contact Point 3mm 37.4mm

Product Description

The MITUTOYO 131317 is a drop indicator contact point designed for use with dial test indicators in precision measurement applications. Machined from steel, this contact point features an M1.7 x 0.35 thread and measures 3 mm in diameter with a contact point length of 37.4 mm (approximately 1.47 inches). It is used by metrologists, machinists, and quality control technicians to take accurate displacement and runout readings in both shop-floor and inspection environments. The steel construction provides durability and consistent contact geometry across repeated measurements.

This contact point is compatible with the 513-512 Pocket Type Dial Test Indicator and is suited for applications requiring precise positional measurement in tight or recessed areas. Its universal geometry supports measurement in multiple directions, making it appropriate for surface deviation checks, bore alignment, and feature-to-feature comparisons in precision machining and quality assurance workflows.

Key Features

• Steel construction for durability and wear resistance during repeated contact
• M1.7 x 0.35 thread for secure attachment to compatible indicator spindles
• 3 mm tip diameter for stable, repeatable contact surface
• 37.4 mm contact point length for reach into recessed or hard-to-access measurement areas
• Supports direction-of-measurement and direction-of-measuring-point flexibility for universal application

Compatibility

Designed for use with the MITUTOYO 513-512 Pocket Type Dial Test Indicator.

Installation Notes

Contact point replacement is performed by qualified metrology or machine shop personnel using appropriate thread engagement for M1.7 x 0.35 spindle connections. Handle the contact tip carefully to avoid surface damage that could affect measurement accuracy. Do not overtighten the contact point onto the indicator spindle, as this can damage the thread or alter stylus alignment.