Key Features
- Measuring range: 50-300mm (2-12 inches) for versatile internal measurements
- Graduation of 0.01mm (0.0005 inches) for fine, accurate readings
- Hardened steel construction with ground measuring faces for long-lasting performance
- Includes multiple extension rods and measuring head for deep bore applications
- Jointed design allows easy assembly and customization for different depths
- Supplied in a durable plastic case for safe storage and transport
- Ideal for marine engineering, shipbuilding, and mechanical maintenance
Technical Specifications
| Specification | Details |
|---|---|
| Measuring Range | 50-300 mm (2-12 in) |
| Graduation | 0.01 mm (0.001 in) |
| Accuracy | ±0.005 mm (±0.0002 in) |
| Material | Hardened steel, carbide-tipped measuring faces |
| Included Extensions | Multiple rods for specified range |
| Case | Plastic carrying case |
| Application | Internal diameter measurement in marine and industrial settings |
Frequently Asked Questions
What is a jointed inside micrometer used for?
A jointed inside micrometer is used to precisely measure internal diameters of bores, cylinders, and pipes. The jointed design allows for adding extension rods, making it suitable for measuring deep or hard-to-reach areas commonly found in marine engines and machinery.
How do I use this micrometer?
Select the appropriate extension rod and attach it to the micrometer head. Insert the assembly into the bore to be measured, then adjust the thimble until the measuring faces lightly contact the walls. Read the measurement from the sleeve and thimble scales for a precise internal dimension.
What accuracy can I expect?
This instrument provides graduations of 0.01mm and an accuracy of ±0.005mm, which is standard for precision inside micrometers used in marine and engineering applications.
Is this micrometer suitable for harsh marine environments?
Yes, the hardened steel construction and corrosion-resistant finish make it suitable for regular use in shipyards and onboard vessels, provided it is properly cleaned and stored in its protective case after use.
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