Micrometer Set INSIZE 2-Point 50–500 mm, model 3222-500

INSIZE micrometer set model 3222-500 is a 2-point external measuring kit covering the range 50–500 mm. The set groups several precision micrometers into one kit to enable accurate external dimension checks across a wide span without changing measurement methods. It is intended for industrial and workshop use in metalworking, machining and quality-control environments where repeatable dimensional control and calibration are required.

Advantages

The set delivers consistent two-point external measurements with accuracy typical of INSIZE production standards. Grouping multiple micrometers into a single set reduces instrument changeover time and helps maintain measurement traceability. The design supports fine spindle control and stable anvil contact for repeatable readings during inspection and setup tasks. The set is convenient for organized storage and transport between workstations.

Suitable for

• External diameter and thickness checks of machined components
• Dimensional control on production lines and inspection benches
• Calibration reference measurements and tool setup
• Workshop and maintenance measurement tasks across 50–500 mm range

Key specifications

• Measurement type: two-point external micrometers
• Measuring range: 50–500 mm (multiple instruments covering the full span)
• Construction: precision-ground anvils and spindle contact surfaces
• Adjustment: fine spindle control for incremental movement
• Readability: high-resolution scale suitable for workshop inspection
• Application environment: industrial machining, metalworking and inspection

How to use

Select the micrometer from the set that covers the target nominal dimension and ensure the instrument is clean and free of burrs or debris. Close the anvils on a calibration standard or gauge block to verify zero or reference reading before measuring the workpiece. Place the workpiece between the anvils and advance the spindle using the ratchet or thimble control until stable contact is achieved, then read the measurement according to the micrometer scale convention. Return the instrument to its storage case after use and, if required, record measurement results in the inspection log for traceability.

Usage recommendations

Handle micrometers with care to avoid impacts and contamination; store in the protective case when not in use. Periodically check calibration against certified gauge blocks and clean contact surfaces with a lint-free cloth. Use consistent measurement technique—apply the same spindle torque and contact procedure—to ensure repeatable results across the 50–500 mm range.