The Mitutoyo 176-821A TM-A1005B Toolmaker's Microscope has a 4 X 2"/ 100 X 50mm XY Stage Travel Range. This model includes Micrometer Heads. A compact microscope that is well suited for measuring dimensions and angles of machined metals. It can also be used to check the shape of screws and gears by attaching an optional reticle. its compact body make sit ideal for use on shop-floors with limited space. The eyepiece section of the optical tube incorporates a vernier protractor and angle measurement is performed easily by turning the protractor to align the cross-hair reticle with the workpiece image.