IMPA: 650443

Jointed Inside Micrometer Set 50-500mm in Wooden Box

This precision jointed inside micrometer set covers a measurement range of 50 to 500mm (2 to 20 inches), making it an essential tool for marine engineers and machinists. Designed for accurate measurement of internal bores, cylinders, and other cavities, the set includes interchangeable extension rods that allow you to determine sizes across the entire range.

Constructed from hardened steel with precision-ground measuring faces, this inside micrometer delivers reliable readings with 0.01mm resolution. The locking screw secures your measurement for easy reading, while the sturdy wooden box keeps each rod and component organized and protected during storage and transport. Ideal for use in ship maintenance, engine repair, and general mechanical workshops.

Whether you are checking an engine cylinder bore or a bearing housing, this jointed inside micrometer set provides the accuracy and versatility required for professional results. The set is a dependable addition to any marine toolkit.

Key Features

Technical Specifications

SpecificationDetails
TypeJointed Inside Micrometer Set
Measurement Range50-500mm
Resolution0.01mm
Accuracy±0.01mm
Extension RodsInterchangeable, covering 50mm increments
MaterialHardened steel, precision-ground
LockingScrew lock for reading retention
StorageWooden box with compartments
IMPA Code650443

Frequently Asked Questions

What is an inside micrometer used for?

An inside micrometer measures the inside diameter of bores, cylinders, holes, and other internal surfaces with high accuracy. It is particularly useful for checking engine cylinders, bearing seats, and similar machine parts.

How do I use this jointed inside micrometer set?

Select the appropriate rod, attach it to the micrometer head, and adjust until the measuring faces contact the internal walls. Turn the friction thimble to apply consistent pressure, then lock the reading. Match the rod length to the micrometer reading to calculate the total dimension.

Does the set include the wooden box and all the rods?

Yes, the set comes complete with a fitted wooden box that stores the micrometer head, interchangeable rods, and all accessories. Each item has its own compartment for safe transportation.

What is the accuracy of this micrometer?

The micrometer has a resolution of 0.01mm and an accuracy of ±0.01mm when properly calibrated. For best results, periodic calibration is recommended after heavy use or any physical impact.

Inquire About This Product

Contact us for pricing, availability, and bulk orders:

📧

📞 [Phone protected by JavaScript]

💬

💚 Add on WeChat

Open WeChat and add this ID:

Select Language