The Mitutoyo 511713 Standard Dial Bore Gauge covers a 50 to 150 mm measurement range, delivering reliable bore inspection in a compact and robust design. This gauge is favored by mechanical and quality teams who need repeatable bore readings without a dedicated inside diameter specification built into the tool name.
Engineered for shop floor efficiency, the 511713 combines hardened steel construction with a smooth active measuring head, making it suitable for routine diameter verification and out-of-round checks on cylindrical bores.
| Model | Range | Resolution | Standard Accessories |
|---|---|---|---|
| 511713 | 50–150 mm | 0.01 mm | Stainless steel measuring head, protective storage case |
| 511715 | 75–200 mm | 0.01 mm | Stainless steel measuring head, protective storage case |
| 511717 | 150–300 mm | 0.02 mm | Carrying case, extra anvils |
Robust Build for Bore Inspection
The 511713 dial bore gauge is constructed from hardened tool steel, providing long wear life under frequent shop floor use. The active measuring head is ground and lapped to ensure consistent contact with the bore surface, reducing sticking and improving repeatability.
Each gauge is supplied with a protective storage case and basic setup instructions. The overall structure keeps deformation low during handling, helping maintenance teams trust the measured bore values over time.
Setup and Adjustment Procedures
Proper setup is essential to obtain stable readings from the Mitutoyo 511713. Technicians adjust the active anvils so that the indicator reads near zero when the anvils are closed within the measuring range, ensuring that both inside and out-of-round measurements reflect actual bore geometry.
Adjusting the Active Anvils
Use calibrated rings or a master bore to set the active anvils at the desired position, locking the micrometer adjuster to prevent drift. Consistent setup reduces operator influence and supports accurate comparison across multiple workpieces.
Calibration Intervals
Follow documented calibration schedules based on usage frequency and environmental conditions. Regular calibration with a certified master ensures the gauge indicators remain within specification and supports compliance with quality management systems.
Compatibility and Mounting Features
The 511713 features a universal 3/8–24 UNF thread, allowing quick installation into most standard boring heads and depth brackets. This thread choice makes the gauge versatile for fixture-based bore checks and adaptable to different machine setups.
Designed for simple alignment, the measuring head geometry minimizes tilt errors when contacting slightly tapered bores. This compatibility with standard tooling helps inspection teams maintain steady throughput without specialized adapters.
Performance in Diverse Environments
In production environments, the Mitutoyo 511713 withstands light handling and repeated insertions into bore surfaces. The stainless steel measuring head resists corrosion, supporting stable performance even in areas with moderate humidity or occasional coolant exposure.
While not intended for aggressive continuous use, the gauge performs well during scheduled inspections and preventive maintenance routines. Teams that follow handling guidelines typically see consistent indication and extended tool life from the 511713.
Key Takeaways for Shop Floor Use
- Verify that the active anvils are locked securely before each measurement to prevent shift during bore contact.
- Use master rings or calibrated bore masters to set the zero position for reliable comparison checks.
- Inspect the measuring head regularly for wear, chipping, or corrosion that could affect bore contact and reading accuracy.
- Store the gauge in its case when not in use to minimize exposure to moisture and accidental impact damage.
- Document calibration dates and results to support traceability in quality audits and process control records.
FAQ
Reader questions
What is the measurement range of the Mitutoyo 511713?
The gauge measures internal diameters from 50 mm to 150 mm, with a revolution indicator style scale for direct unit readings at 0.01 mm resolution.
Can I use this gauge on tapered bores?
Yes, the active anvils allow adjustment to follow slight taper within the range, though highly tapered bores may require additional checks for out-of-roundness.
What accessories are included in the standard kit?
A stainless steel measuring head, protective storage case, and basic setup documentation are included with the 511713 as shipped from the supplier.
How often should the 511713 be calibrated?
Calibration intervals depend on usage and environment, but many quality plans schedule checks every 6 to 12 months to verify indicator accuracy and repeatability.