INSIZE micrometer 100–125 mm MIKROMETR 100-125 STANDARD

INSIZE micrometer 100–125 mm MIKROMETR 100-125 STANDARD is a mechanical outside micrometer designed for accurate external measurements in the 100–125 mm range. It features a calibrated spindle, engraved thimble scale and a ratchet stop to ensure repeatable contact pressure. The tool is intended for workshop use and inspection tasks where reliable 0.01 mm resolution and a robust metal construction are required for dimensional control of shafts, blocks and machined components.

Advantages

The micrometer offers precise measurement with a 0.01 mm graduation and a hardened measuring face for wear resistance. The calibrated spindle and engraved thimble improve reading accuracy, while the ratchet stop provides consistent measuring force to reduce operator variability. Rugged mechanical construction and a clear scale make it suitable for frequent workshop use and quality control environments.

Suitable for

• Measuring external diameters of shafts and pins in the 100–125 mm range
• Dimensional inspection of machined blocks and components
• Setup and verification tasks in production and maintenance
• Quality control checks where 0.01 mm resolution is required

Key specifications

• Measuring range: 100–125 mm
• Resolution: 0.01 mm
• Type: outside (external) micrometer
• Measuring faces: hardened steel
• Spindle: calibrated with engraved thimble scale
• Contact control: ratchet stop for repeatable force
• Construction: metal frame suitable for workshop conditions

How to use

Place the micrometer around the workpiece so that the measuring faces contact the surface to be measured. Use the thimble to close the spindle until the contacts touch the workpiece, then engage the ratchet stop to apply consistent measuring force. Read the measurement from the sleeve and thimble scales, combining the main scale and the thimble graduation to obtain the value to 0.01 mm. After measurement, open the spindle to remove the micrometer and store it in a protective case or on a clean surface to avoid damage and contamination.

Usage recommendations

Calibrate the micrometer periodically and keep measuring faces clean and free of debris. Allow the workpiece and instrument to reach similar ambient temperature before measuring to minimize thermal expansion errors. Use the ratchet for final contact to ensure repeatable results and avoid overtightening the spindle.