Description
Condition
Used (Well Used / Working Order).
This bore gauge is a “workhorse” example that has seen active service in a machine shop environment. While it is fully functional—with the internal push-rod mechanism and centralising bridge operating correctly—it shows significant cosmetic signs of age and use. There is surface rust visible on non-critical areas of the body, and the dial indicator face has accumulated grime and shows small fractures in the plastic cover (though the needle is still visible and moves freely). The original storage case is intact but presents as dirty and worn. This unit is best suited for a student, hobbyist, or as a secondary workshop tool where mechanical function is prioritized over pristine aesthetics.
Product Overview
The Mitutoyo 511-132 is a Standard Bore Gauge designed for the accurate measurement of internal diameters ranging from 50mm to 150mm. It is an essential tool for engine building and general machining, used to detect barrel distortion, bell-mouthing, and ovality in cylinders. The gauge features a self-centring bridge that automatically aligns the measuring anvils across the true diameter of the bore, ensuring reliable and repeatable readings. Despite the cosmetic wear on this specific unit, the underlying Mitutoyo mechanics remain robust, offering a cost-effective solution for measuring deep bores without the price tag of a new set.
Brand Information
Mitutoyo Corporation, established in 1934 in Japan, is the global leader in precision metrology. The Series 511 bore gauges are industry icons, celebrated for their durability and measuring feel. Older Mitutoyo instruments like this are often kept in service for decades because their hardened steel components and jewelled indicator movements are built to withstand rigorous industrial use, often outlasting the external finish of the tool.
Specifications
| Feature | Specification |
| Model | 511-132 |
| Measuring Range | 50mm – 150mm |
| Indicator Type | Dial Indicator (Analog) |
| Graduation | 0.01mm |
| Mechanism | Self-Centring Bridge |
| Anvils | Interchangeable Set |
| Condition | Mechanically Sound / Cosmetically Poor |
| Included | Gauge Body, Dial Indicator, Anvils, Case |
Keywords
Mitutoyo, 511-132, bore gauge, cylinder gauge, 50-150mm gauge, engine building tools, internal diameter, ID measurement, machinist tools, vintage tools, used measuring equipment.
