Caliper (plastic) Isma Suwmiarka 150 mm measuring range, accuracy ±0.05 mm

Isma Suwmiarka is a 150 mm plastic caliper designed for quick linear measurements of external and internal dimensions and depths. With a compact measuring range up to 150 mm and stated accuracy of ±0.05 mm, this lightweight tool is intended for light workshop, hobby and DIY tasks where corrosion resistance and easy handling are priorities. The caliper features clear graduations and simple sliding action to facilitate straightforward measuring without complex setups.

Advantages

The plastic construction makes the caliper lightweight and resistant to rust, suitable for environments where metal tools could corrode. Its 150 mm range covers most small-scale measuring tasks encountered in home repairs, model making and routine maintenance. The stated accuracy of ±0.05 mm provides acceptable precision for non-critical measurements while the readable scale and smooth slide enable fast, repeatable checks. Its compact size is convenient for storage and transport in a toolbox or workshop drawer.

Suitable for

• Measuring external dimensions of small parts and components
• Checking internal diameters and gaps
• Measuring depths and step heights of assemblies
• Hobby projects such as model building and crafting
• Basic workshop and DIY measuring tasks

Key specifications

• Measuring range: up to 150 mm
• Accuracy: ±0.05 mm
• Material: plastic body and jaws
• Measurement functions: external, internal, depth
• Scale type: graduated (manual readout)
• Weight: lightweight, suitable for handheld use

How to use

Slide the jaws gently along the scale to the approximate position, then close them onto the object to measure external dimensions or open them to measure internal dimensions. For depth measurements, extend the depth rod into the feature and read the position on the scale. Ensure the jaws are clean and free of debris before measuring and avoid excessive force when clamping parts to prevent flexing of the plastic jaws. Read the measurement from the graduated scale and account for the stated accuracy of ±0.05 mm when interpreting results.

Usage recommendations

For best results, use the caliper for non-critical measurements in light workshop, hobby and DIY settings. Store the tool in a dry place away from prolonged exposure to heat or solvents. Regularly check the scale readability and clean the sliding surfaces with a soft cloth; avoid dropping or applying strong impacts that could affect measurement accuracy.