Outside micrometer with choice of measuring range and flat anvil/spindle pair for general purpose measuring. | Vernier scale has microfine 0.0001" graduations and accuracy of 0.0001" for precise readings | Ratchet stop thimble provides exact and repetitive readings, satin chrome finish on thimble and sleeve helps resist rust and reduce glare | Friction or ratchet-stop thimble provide exact and repetitive readings | Fixed handle and ratchet thimble for precise application of pressure on object.