The Mitutoyo Outside Micrometer with Interchangeable Anvils features a ratchet stop function and interchangeable anvils for measuring a wide range of workpiece sizes and material types with precision. This series of micrometers with interchangeable anvils are available in inch and metric measurements. The Mitutoyo 104-201 outside micrometer is ideal for measuring metal and non-metal workpieces by controlling the amount of force applied by the spindle. A ratchet-stop mechanism provides uniform pressure on a workpiece for precise, repeatable measurements. Interchangeable anvils allow for measuring a wide range of workpiece sizes.