Digital Outside Micrometer INSIZE 3101-50A 25–50 mm IP50 accuracy (digital micrometer)

The Digital Outside Micrometer INSIZE 3101-50A measures external dimensions from 25 to 50 mm and provides direct digital readout for quick, unambiguous readings. Designed for workshop inspection, quality control and precision mechanical assembly, this digital micrometer combines a calibrated measurement spindle with an electronic display to deliver repeatable numeric results for shafts, pins and other external features. The instrument has an IP50 protection rating and is supplied by the brand INSIZE.

Advantages

The digital display delivers clear numeric values that reduce reading errors and speed up inspection tasks. A measuring range of 25–50 mm covers common small- to mid-size external dimensions encountered in mechanical workshops. The IP50 protection rating helps protect internal components from dust ingress during normal workshop use. The micrometer’s calibrated spindle and digital electronics provide repeatability suitable for routine quality-control checks and assembly processes.

Suitable for

• Measuring shaft diameters and external pins
• Workshop inspection and incoming parts verification
• Quality control checks in mechanical assembly
• Routine dimensional checks on small components

Key specifications

• Measuring range: 25–50 mm
• Type: outside micrometer with digital readout
• Protection rating: IP50
• Display: electronic numeric readout
• Applications: external dimension measurement for shafts, pins and similar features

How to use

Place the micrometer anvils around the external feature to be measured, rotate the spindle until the workpiece is gently secured between the measuring faces, and read the measurement directly from the digital display. Ensure the micrometer is zeroed or calibrated as required before critical measurements, and avoid applying excessive torque when closing the spindle to prevent measurement error. Use the instrument on clean, dry workpieces and allow it to stabilise at workshop temperature for most accurate results.

Usage recommendations

For best results, store the micrometer in a protective case when not in use, perform periodic zero checks before inspection sessions, and clean measuring faces with a lint-free cloth. Avoid exposing the instrument to heavy dust or liquids beyond the IP50 level, and follow standard calibration intervals appropriate to your quality-control procedures.