Mitutoyo 201-155 is a 4–5 inch snap gauge with no indicator, designed for fast, readout-free verification of exterior dimensions within its range. This plain gauge provides a direct means to compare part sizes to the 4–5 inch span, making it suitable for quick dimensional checks in inspection workflows where a dial, digital readout, or micrometer is not used. As a Mitutoyo tool, it is built to provide reliable external dimension checks for parts whose outer dimensions should conform to tolerance bands.
