Mitutoyo 619051 Half Round Jaw 0.250 Inches Gage Block

Product Description

The MITUTOYO 619051 is a half round jaw measuring 0.250 inches, designed as a precision accessory for use with gage blocks in metrology and dimensional inspection applications. Machined from steel, this cylindrical-profile jaw provides a reliable mating surface when performing accurate linear measurements. It is sold as a single piece replacement component, intended for technicians and metrologists who maintain or reconfigure gage block accessory sets. The 619051 integrates directly into compatible Mitutoyo gage block holders, restoring measurement capability without requiring full accessory kit replacement. Its compact size and durable steel construction make it a straightforward field or shop replacement.

This half round jaw is suited for precision measurement environments including calibration labs, quality control stations, and toolroom applications. It is used when a cylindrical jaw surface is required for contact measurement against workpieces with curved or flat datum surfaces. Typical users include metrology technicians, quality engineers, and skilled machinists working with gage block accessory sets in both production and inspection settings.

Key Features

• Cylindrical half round jaw profile for consistent contact measurement
• Steel construction for durability and dimensional stability
• 0.250 inch jaw size for precise fitment applications
• Designed for use with gage blocks as a direct accessory component
• Sold as a single piece for targeted replacement without full kit purchase

Compatibility

Designed for use with gage blocks as stated in product specifications. Confirm fitment with your specific Mitutoyo gage block accessory holder before ordering.

Installation Notes

Installation of gage block accessories should be performed by a qualified metrology technician or toolroom professional familiar with precision measurement equipment. Ensure all measuring instruments are removed from service and surfaces are clean and free of debris before fitting or swapping jaw components. Avoid applying excessive force during seating, as steel jaw surfaces are precision-ground and susceptible to damage from improper handling.