Precision Inside Micrometer Set – Adjustable Range 50-1500mm with Calibration Ring & Carbide Tips

  • Professional inside micrometer set with extension rods for measurements from 50-1500mm.
  • Includes calibration ring for zeroing, carbide contact points, and achieves accuracy of (3+n+L/50)μm.
  • Ideal for large internal diameter measurement.

Product Description:

Precision Inside Micrometer Set – Large Range Internal Measurement with Calibration Ring

Our professional inside micrometer set provides accurate measurement of internal diameters from 50mm to 1500mm through a combination of extension rods. The set includes a calibration ring for precise zeroing adjustment, ensuring measurement accuracy throughout the entire range. Featuring carbide-tipped contact points and Φ15.5mm steel extension rods, this micrometer set offers exceptional durability and measurement stability for industrial applications.


📊 Technical Specifications:

Model Number Measuring Range Extension Rod Configuration
H-301-10-060 50-63mm Micrometer head only
H-301-02-060 50-75mm 13mm rod
H-301-11-060 50-100mm 13mm, 25mm
H-301-12-060 50-150mm 13mm, 25mm, 50mm
H-301-03-060 50-175mm 13mm, 25mm(2), 50mm
H-301-04-060 50-250mm 13mm, 25mm, 50mm, 100mm
H-301-13-060 50-300mm 13mm, 25mm, 50mm(2), 100mm
H-301-05-060 50-600mm 13mm, 25mm, 50mm, 100mm, 150mm, 200mm
H-301-14-060 50-500mm 13mm, 25mm, 50mm(2), 100mm, 200mm
H-301-21-060 50-900mm 13mm, 25mm, 50mm, 100mm, 150mm, 200mm, 300mm
H-301-15-060 50-1000mm 13mm, 25mm, 50mm, 100mm(2), 150mm, 200mm, 300mm
H-301-16-060 50-1500mm 13mm, 25mm, 50mm, 100mm(2), 150mm, 200mm(2), 300mm(2)

Resolution: 0.01mm
Accuracy: (3+n+L/50)μm (where n = number of extension rods, L = maximum measurement length in mm)
Rod Diameter: Φ15.5mm steel tubing
Contact Points: Carbide-tipped for wear resistance


⚙️ Key Features:

  • Extended Measurement Range: Configurable from 50mm to 1500mm with various extension rod combinations

  • Precision Calibration Ring: Included for accurate zero setting and verification

  • Carbide-Tipped Contacts: Ensures long-term measurement accuracy and wear resistance

  • High-Quality Extension Rods: Φ15.5mm steel construction provides rigidity and stability

  • Mathematical Accuracy Formula: Precision guaranteed through (3+n+L/50)μm accuracy calculation

  • Interchangeable Components: All extension rods are precisely manufactured for perfect compatibility

  • Professional Resolution: 0.01mm resolution suitable for precision internal measurements


🛠️ Applications:

  • Machinery manufacturing and maintenance

  • Pipe and tubing internal diameter measurement

  • Engine cylinder and bore measurement

  • Large bearing housing inspection

  • Automotive and aerospace component manufacturing

  • Quality control and precision metrology

📦 Each set comes with a durable storage case, calibration certificate, and complete documentation. All extension rods are clearly marked and precision-matched for optimal performance.

Note: Accuracy calculation example for 500mm measurement with 4 extension rods:
(3 + 4 + 500/50)μm = (3 + 4 + 10)μm = ±17μm

Contact us for custom configuration options and volume pricing!

[Request Catalog] for complete size specifications or [Contact Us] for custom set configurations and volume pricing.

Precision Inside Micrometer Set – Adjustable Range 50-1500mm with Calibration Ring & Carbide Tips
This website uses cookies to improve your experience. By using this website you agree to our Data Protection Policy.
Read more