Outside micrometer with choice of measuring range and flat anvil/spindle pair for general purpose measuring
Vernier scale has microfine 0.001" graduations and accuracy of 0.00024" for precise readings
Hardened, precision-ground, and carbide-tipped anvil and spindle have 0.256" measuring faces with micro-lapped finish, 0.00003" flatness and .00016” parallelism for accurate measurements
Ratchet stop thimble provides exact and repetitive readings, satin chrome finish on thimble and sleeve helps resist rust and reduce glare