Description
Condition
New.
Product Overview
The Mitutoyo 511-702 is a professional Standard Bore Gauge (Series 511) designed for the highly accurate measurement of inside diameters within the 35mm to 60mm range. Known as the “CG-60AX” model, it features a redesigned hollow grip structure that reduces heat transfer from the operator’s hand by approximately 50%, a critical innovation that prevents thermal expansion from skewing high-precision readings. The instrument uses a two-point contact system with a self-centring bridge to ensure the gauge aligns perfectly with the diameter of the bore. The contact points and anvils are tipped with carbide, providing exceptional wear resistance and ensuring that the tool maintains its accuracy even after measuring abrasive cast iron cylinders.
Brand Information
Mitutoyo Corporation is the world’s foremost manufacturer of precision measuring equipment, founded in Japan in 1934. The company has a long-standing reputation for producing the most reliable bore gauges in the industry, which are the standard choice for engine builders, machinists, and quality control departments globally. The Series 511 gauges are celebrated for their durability and the smoothness of their mechanical action, which allows operators to detect minute geometric errors such as ovality (out-of-roundness) and taper in deep bores with confidence.
Specifications
| Feature | Specification |
| Model | 511-702 (CG-60AX) |
| Measuring Range | 35mm – 60mm |
| Accuracy (Wide Range) | 2µm |
| Repeatability | 0.5µm |
| Measuring Depth | 150mm |
| Contact Points | Carbide Tipped |
| Anvils Included | 6 Anvils |
| Spacers Included | 4 Spacers |
| Stem Diameter | 8mm (Standard) |
| Indicator Included | No (Sold Separately) |
| Included | Plastic Case, Anvils, Spacers, Papers |
Keywords
Mitutoyo, 511-702, bore gauge, cylinder gauge, internal diameter measurement, engine building tools, ID gauge, 35-60mm gauge, hollow grip, Japanese metrology, precision machining.
