The Mitutoyo TM-A1005B Toolmaker's microscope is well suited for measuring dimensions and angles of machined metals. It can be used to check the shape of screws and gears by attaching an optional reticle. The TM-A1005B features a 4 x 2 in travel stage and includes two digimatic heads. Mitutoyo Cat No. 176-821A Specifications Optical Tube: Monocular Type (Vertical tilt angle: 60 degrees) Observation Image: Errect Eyepiece Protractor: Resolution (graduation) : 1°, Rotation angle: 360°, Resolution (angle): 6', Adjustable zero point Eyepiece: Standard accessory: 15X (field number: 13), Options: 10X, 20X Objective lens: 2x Microscope Head: Maximum height of workpiece: 4.21" / 107mm Focusing Method: Manual (Coarse feed) Illumination: Transmitted illumination: Stepless brightness adjustment, White LED light source, With green filter Surface illumination: Oblique single-source type, Stepless brightness adjustment, White LED light source Cross-travel Stage: Measuring Range: 4" x 2" / 100×50mm Table Size: 9.44" x 6" / 240×152mm Usable Area of Stage Glass: 6" x 3.8" / 154×96mm Maximum Stage Glass Loading: 11 lbs. / 5kg Linear Measurement: Two digimatic micrometer heads for X-Y measurement Resolution: .00005"/1μm Travel Range: 2"/50mm Power Supply: 120VAC Maximum power consumption: 4.2W Brochure Mitutoyo TM Brochure