Features Vernier scale outside micrometer sets come with multiple mechanical micrometers of the same style across a span of measuring ranges. These micrometers have the same construction, finish, graduations, and thimble type, and increase in 1 inch or 25mm increments. These sets are commonly used in automotive service and machine shops, tool rooms, and in inspection departments. Range / 0 in to 6 in Resolution / 0.001 in SPC Output / No Number of Micrometers / 6 Operation Type / Mechanical Thimble Type / Friction/Ratchet Case Included / Yes Case Type / Plastic Case Includes / (5) Standards, (6) Micrometers, Carbide Faces, Spanner Wrenches Accuracy / +/-0.0004 in