Designed to measure the external thickness or diameter of small parts, it is ideal for mechanics, technicians, engineers and scientists. Made of cemented carbide and cast iron, these outside micrometers are sturdy and durable. Widely used for precise measurement of length, diameter or thickness. Micrometers are precision measuring instruments that use a calibrated screw to measure distances. Key benefits precision and repeatability for demanding measurements Robust construction with cemented carbide and cast iron for long term use Simple operation using a calibrated screw to obtain quick, reliable readings Suitable for measuring small external dimensions with good stability Attributes emphasized Function: external measurement of thickness and outside diameter Material: cemented carbide and cast iron for durability Performance: precise, repeatable measurements with calibrated screw mechanism Size/compatibility: designed for small parts; suitable for a range of standard outside micrometer tasks 23 practical use scenarios In a workshop, verify the external diameter of shafts, pins or fasteners during assembly to ensure proper fit. In a lab or RD setting, measure thin components or shims to confirm sample dimensions for experiments. In manufacturing quality control, inspect produced parts to ensure they meet specified external dimensions and tolerances.