Inch wheels refer to a type of measuring tool used for precise measurements. It is essentially an instrument with multiple small spokes or teeth that rotate around a central hub, and each rotation represents one inch (or centimeter). The number of rotations required to complete the measurement indicates how many inches are needed to achieve the desired result. Inch wheels can be found on various measuring tools such as calipers, micrometers, dial indicators or height gauges, and they provide a quick and accurate way to measure small distances in both industrial and domestic settings.