Fowler Economy Vernier Micrometer Set, 0 3

Outside micrometer with a 0 to 3" measuring range and flat anvil/spindle pair for general purpose measuring, set of three Vernier scale has 0.0001" graduation interval for precise readings Hardened and precision-ground anvil and spindle have 0.256" diameter micro-lapped carbide measuring faces with 0.00005" parallelism on 0 to 1" micrometers and 0.00003" flatness for accurate measurements Friction-style with ratchet stop applies constant force for repeatability between users and is suitable for one-handed operation Insulated frame helps reduce temperature-related expansion or contraction and isolates heat from the operator's hand