Mitutoyo 50-500mm Tubular Micrometer No.137-208

Description

Arriving late September 2025 for delivery – Pre-order now

This is a Mitutoyo 137-208 Tubular Inside Micrometer Set, covering a wide range of 50 – 500 mm. The set is new and unused, with all components still sealed in their factory plastic, except for the micrometer attachment which has been opened. Considered NOS (New Old Stock), it comes housed in its original Mitutoyo fitted case.

The tubular inside micrometer series is designed for measuring large internal diameters with excellent rigidity, accuracy, and ease of use.

Specifications

• Brand / Model: Mitutoyo 137-208 Tubular Inside Micrometer
• Measuring Range: 50 – 500 mm
• Graduation (Resolution): 0.01 mm
• Accuracy: ±(5–6 µm, depending on extension length)
• Construction: Lightweight tubular extensions to reduce deflection in larger spans
• Components:
  • Micrometer head
  • Tubular extension rods covering full 50–500 mm range
  • Spanner wrench
  • Original Mitutoyo fitted case
• Condition:
  • Standards and extensions – factory sealed in original plastic
  • Micrometer head – opened but unused
  • Case – original, showing light shelf wear from age

Features

• Wide Measurement Range: Modular extension tubes allow measuring large bores up to 500 mm with a single set.
• Tubular Design: Ensures lighter weight for easier handling, while maintaining rigidity and accuracy.
• Precision Micrometer Head: 0.01 mm graduations for fine measurement.
• Interchangeable System: Quickly adapts to different bore sizes using extension rods.
• Factory-Fresh Condition: Still sealed in original plastic (except attachment), never used in service.