Carbon fiber composite calipers are lightweight and non-marring, making them ideal for measuring delicate or polished objects without scratching the surface. Unlike steel, they are non-conductive, which is a critical safety feature for electrical engineering and battery maintenance scenarios. However, buyers should note that while they offer high durability, they generally provide an accuracy of ±0.1mm or ±0.2mm, which is suitable for general DIY and light industrial use rather than high-precision toolroom applications.