Description of Fowler 52 248 001 Micrometer Measuring Graduation
Outside micrometer with flat anvil/spindle pair and a choice of measuring range for general purpose measuring. Vernier scale with 0.01mm graduations and 0.001mm accuracy for precise readings. Hardened, precision-ground, and carbide-tipped anvil and spindle have 6.5mm measuring faces with micro-lapped finish, 0.00076mm flatness and 0.000125mm parallelism for accurate measurements. Hardened, ground and lapped spindle thread provides smooth movement, accuracy, and long life. Friction or ratchet-stop thimble provide exact and repetitive readings.