Extension Sleeve for Probe INSIZE 20 mm M2.5×0.45 (model 6282-2003)

INSIZE extension sleeve for probe, model 6282-2003, is a short metal adapter with a 20 mm length and M2.5×0.45 threaded interface. It is designed to extend the reach of measurement probes and sensors used with precision measuring instruments, allowing access to tight, recessed or awkward measurement points in workshops and inspection stations.

Advantages

The extension sleeve provides a compact, rigid connection that preserves probe alignment and measurement repeatability. Its standardized M2.5×0.45 thread ensures compatibility with probes and sensors that accept the same thread size, while the 20 mm length offers a modest extension without significantly altering probe dynamics. The metal construction gives durable wear resistance suitable for regular workshop use.

Suitable for

• Extending dial test indicators and contact probes to reach recessed features
• Use with height gauges, comparators and portable hardness testers where deeper access is needed
• Inspection tasks on machined parts with narrow bores or stepped surfaces
• Workshop and bench measurement setups requiring short, rigid probe extension

When it may not be suitable

Because the sleeve provides only a 20 mm extension, it may not be adequate when much longer reach is required. Also, if your measuring setup is highly dynamic or vibration-prone, any added extension can affect probe stiffness and influence measurement stability; in such cases a dedicated long-stem probe or alternative mounting should be considered.

Key specifications

• Extension length: 20 mm
• Thread type and size: M2.5 × 0.45
• Material: metal (machined construction for durability)
• Function: rigid probe/sensor extension for contact measurement tools

How to use

Screw the extension sleeve onto the probe or sensor using the matching M2.5×0.45 threaded receptacle, ensuring threads are clean and undamaged. Tighten by hand and finish with appropriate small tool torque if required by your instrument’s manufacturer, taking care not to deform threads. Attach the probe tip or stylus to the opposite end and verify alignment and zero reference before taking measurements. After use, keep the sleeve clean and store it with other precision accessories to avoid thread damage.

What to consider before purchase

• Confirm that your probe or sensor accepts an M2.5×0.45 threaded extension
• Verify that a 20 mm extension is sufficient for your measurement reach needs
• Check material compatibility with your environment (e.g., corrosion exposure, high humidity)
• Ensure the sleeve’s rigidity and length are appropriate for the required measurement accuracy

Usage recommendations

Use the extension sleeve for short, precise reach adjustments and always re-calibrate or check probe zero after adding the extension. Avoid excessive torque on small threads and inspect threads regularly for wear to maintain measurement reliability.