Fowler 52 224 104 Inch Outside Digit Micrometer Set, 0 4" Measuring Range, 0.0001" Graduation, Set of 4

Outside micrometer set with a 0 to 4" measuring range and flat anvil/spindle pair with 0.256" diameter measuring face for general purpose measuring, set of four Digit display has 0.001" graduations and Vernier scale to 0.0001" and an accuracy of 0.00016" for precise readings Hardened and precision-ground anvil and spindle have micro-lapped carbide measuring faces with 0.00005" parallelism on 0 to 1" micrometers and 0.00003" flatness for accurate measurements Hardened, ground and lapped spindle thread provides smooth movement, accuracy, and long life Ratchet stop applies constant force for repeatability between users