XtremepowerUS 0-6" Premium Outside Micrometer Machinist Tool Set Round Frame W/carbide Tips Includes 6 Micrometers with measuring ranges: 0 - 1", 1 - 2", 2 - 3", 3 - 4", 4 - 5", 5 - 6" Super Hard Carbide Tipped Complete with calibration standards and wrenches Ratchet handle for precise application of force. Vernier Graduations: 0.0001"