Mitutoyo 511-733 Dial Bore Gage 2 to 6 Inches

Product Description

The MITUTOYO 511-733 is a dial bore gage designed to measure internal bore diameters from 2 to 6 inches with an accuracy of 0.00008 inches. It uses a two-point contact system and a pendulum guide structure that allows the gage to slide smoothly into the bore and self-center during measurement. The 511-733 ships with 11 interchangeable anvils, 4 spacers, a 4-inch sub-anvil, an indicator clamp, and a handle, giving technicians a broad measurement range from a single kit. This instrument is used by machinists, quality control technicians, and maintenance professionals who require precise bore measurement in production or field service settings.

The 511-733 is suited for inspecting cylindrical bores in pumps, compressors, engine blocks, and other mechanical housings where bore geometry must be verified. Its 11-anvil kit and included spacers cover the full 2 to 6 inch range without requiring additional accessories for most common bore sizes. The gage supports ovalness and taper measurement, making it appropriate for both incoming inspection and wear analysis on in-service components. A white dial face aids readability in typical shop lighting conditions. No indicator is included; a compatible dial indicator must be sourced separately.

Key Features

• Measurement range of 2 to 6 inches covered by the included 11-anvil set
• Accuracy of 0.00008 inches for high-resolution bore inspection
• Two-point contact system for consistent, repeatable readings
• Pendulum guide structure allows smooth, controlled slide into the bore
• Supports ovalness and taper measurement in a single setup
• Complete kit includes 11 anvils, 4 spacers, 4-inch sub-anvil, indicator clamp, and handle

Compatibility

Designed as an OEM-style bore gage for use with a separately sourced compatible dial indicator; no indicator is included with this unit.

Installation Notes

Installation and use of this gage should be performed by a qualified machinist or metrology technician familiar with bore measurement procedures. Before use, zero the gage against a calibrated ring gage or master setting tool of known diameter. Keep the gage clean and free of chips or coolant that could affect anvil seating and measurement accuracy. Store the instrument in its case when not in use to protect the anvils and prevent damage to the gage mechanism.