Caliper INSIZE SUWMIARKA 300 MAUA 0,05 12 SQ — INSIZE 1205-300S precision 300 mm, 0.05 mm

INSIZE SUWMIARKA 300 MAUA 0,05 12 SQ (model 1205-300S) is a 300 mm vernier caliper engineered for precision linear measurement in workshop, inspection and assembly environments. With a 0.05 mm resolution and a clear etched scale, this caliper measures external and internal dimensions as well as depths. Its robust construction and straightforward mechanical design make it a practical instrument for metalworking, engineering and quality control tasks where reliable manual measurement is required.

Advantages

The caliper combines a 300 mm measuring range with fine 0.05 mm graduation, providing a balance of reach and resolution for common industrial tasks. Its durable frame and hardened measuring jaws resist wear during regular use, while the vernier scale and fixed reference allow repeatable readings without batteries or electronics. The simple, maintenance‑friendly design ensures consistent performance in workshop conditions.

Suitable for

• Measuring external diameters and widths of machined parts
• Measuring internal diameters and clearances
• Checking depths of holes and slots
• Quality control and inspection in production lines
• General workshop layout, fitting and assembly work

Key specifications

• Measuring range: 0–300 mm
• Resolution (vernier): 0.05 mm
• Measurement functions: external, internal, depth
• Scale type: vernier (mechanical) with etched markings
• Construction: rigid frame with hardened measuring jaws
• Readable accuracy suitable for workshop and inspection tasks

How to use

Place the object between the external jaws to measure outside dimensions, or use the internal jaws to determine bore or slot widths. For depth measurement, extend the depth rod into the feature until the main slide contacts the reference face. Read the main scale and vernier scale together to obtain the measurement with 0.05 mm resolution. Ensure the jaws are clean and the sliding surfaces move smoothly; bring the jaws gently into contact with the part to avoid deformation of the measured surface.

Usage recommendations

Store the caliper in a protective case when not in use, keep measuring faces free of chips and oil, and periodically check the zero setting before critical measurements. Avoid using the tool as a pry or alignment gauge to maintain calibration and prolong service life.