Mitutoyo 187-552 Digital Protractor 360 Degree 12 Inch Blade

Product Description

The MITUTOYO 187-552 is a digital protractor designed for precise angle measurement in fabrication, machining, inspection, and layout work. It covers a full 360-degree measuring range with a resolution of 0.01 degrees (1 minute) and an accuracy of plus or minus 0.03 degrees (2 minutes), making it suitable for applications where tight angular tolerances matter. The 12-inch stainless steel blade resists corrosion and holds up under regular shop-floor use. A data output port allows readings to be logged to external devices. Power comes from a single CR2032 lithium battery. This instrument is used by machinists, tool and die makers, quality control technicians, and layout professionals.

The 187-552 is well suited for measuring angles on workpieces, checking bevel and miter setups, and verifying angular features during inspection. Its 360-degree range means it handles both inside and outside angles without repositioning the workpiece. The included clamp box makes it compatible with inch height gage setups, expanding its usefulness in layout and inspection environments. It ships with a CR2032 battery and a plastic protective case, making it ready for immediate use out of the box.

Key Features

• Full 360-degree measuring range handles inside and outside angles
• Resolution of 0.01 degrees (1 minute) for fine angular measurement
• Accuracy of plus or minus 0.03 degrees (2 minutes)
• 12-inch stainless steel blade for durability and corrosion resistance
• Data output port for connecting to external logging or SPC systems
• Includes CR2032 lithium battery, clamp box for inch height gage, and plastic case

Compatibility

Includes a clamp box for use with inch height gages. Compatible with data output systems that accept standard digital measurement signals. No additional compatible model numbers were specified in the product data.

Installation Notes

This instrument requires no installation in the traditional sense, but should be calibrated and zeroed before use following MITUTOYO procedures. Keep the blade and measuring surfaces clean and free of chips or coolant before taking measurements. Do not overtighten the clamp mechanism, as this can affect blade alignment and measurement accuracy. Battery replacement requires a CR2032 lithium cell; power down the unit before swapping the battery.