Mitutoyo 513-442-16A Horizontal Dial Test Indicator

Product Description

The MITUTOYO 513-442-16A is a horizontal dial test indicator designed for precision measurement in machining, inspection, and quality control applications. It features a 40mm black dial with a graduation of 0.0005 inches and a measurement range of 0 to 0.06 inches, reading in a 0-15-0 balanced format. The glare-free crystal face and scratch-resistant dial surface support accurate readings under shop-floor lighting conditions. Built with a no-clutch structure and automatic reversal mechanism, this indicator is suited for use by machinists, metrologists, and quality technicians who require repeatable contact measurement without manual reset between passes.

This horizontal dial test indicator is used in precision metrology setups including surface plate inspection, machine tool alignment, runout checks, and fixture verification. The horizontal lever-style contact arm allows low-profile access in tight workpiece geometries where a standard plunger-type indicator cannot reach. It ships with one contact point and is compatible with standard indicator holders, magnetic bases, and dovetail mounting systems commonly found in machine shops and inspection rooms.

Key Features

• Measurement range of 0 to 0.06 inches with 0.0005 inch graduation for fine-resolution readings
• 40mm black dial in 0-15-0 layout for easy bidirectional reading
• Automatic reversal mechanism eliminates need for manual contact arm repositioning
• Carbide-tipped contact point with 0.079 inch ball diameter for wear resistance and consistent contact
• Dust and oil proof construction with O-ring seal for reliable performance in shop environments
• Glare-free, scratch-resistant crystal face reduces reading errors under direct lighting
• High-impact resistance housing suitable for demanding inspection and production floor use

Compatibility

Designed as an OEM-style precision instrument compatible with standard dovetail-mount indicator holders and universal magnetic base systems used in machine shop and inspection applications.

Installation Notes

Installation is performed by machinists or metrologists using a compatible dovetail holder or magnetic base arm. Secure the indicator stem firmly before zeroing to prevent measurement drift. Ensure the contact point stem angle is set within the manufacturer-specified working range to maintain accuracy. No electrical power or special tools are required for mounting.