Part Number:52-246-001-1  |  Number Of Items:1 The Fowler 52-246 series outside micrometer has a blade-style anvil/spindle pair with a choice of measuring range and 0.0001" graduations and is designed to measure groove diameters of shafts and workpieces with narrow or recessed features. The Vernier scale has 0.0001" graduations and an accuracy of 0.0002" for precise readings and accurate measurements. A zero adjustment on the sleeve ensures accurate measurements. The blade has a 0.030" thickness, a 0.256" width, and a 0.315" penetration for measuring narrow grooves and hard-to-reach areas, and a non-rotating spindle keeps workpieces stable during measurements. The hardened, ground, and lapped spindle thread provides smooth movement, accuracy, and long life. The ratchet-stop thimble can be used independently of the friction thimble. It provides an audible sound and stops the spindle from turning when the spindle comes into contact with the workpiece, providing constant force for consistent measurements between operators. A satin chrome finish on the thimble and sleeve helps reduce rust and glare, providing durability and long life, and microfine graduations help ensure accurate readings. The baked-enamel frame is heat-insulated to provide durability, long life, and resistance to temperature-related expansion and contraction. The micrometer includes a wrench and a fitted case. Micrometers 2" and above include a standard. SpecificationsDisplay type Vernier scale Anvil/spindle style Blade Measuring range Varies Graduation interval 0.0001" Accuracy 0.0001" Thimble style Ratchet Blade thickness 0.030" Blade width 0.256" Blade penetration 0.315"Micrometers are precision measuring instruments that use a calibrated screw to measure distances. These measurements are translated into large rotations of the screw that are then able to be read from a scale or a dial. Micrometers are typically used in manufacturing, machining, and mechanical engineering. There are three types of micrometer: outside, inside, and depth. Outside micrometers may also be called micrometer calipers, and are used to measure the length, width, or outside diameter of an object. Inside micrometers are typically used to measure interior diameter, as in a hole. Depth micrometers measure the height, or depth, of any shape that has a step, groove, or slot.The Fred V. Fowler Company manufactures inspection and measurement instruments such as electronic indicators, calipers, bore gages, and digital scales. The company, founded in 1946, is headquartered in Newton, MA.What’s in the Box? Fowler 52-246 series blade micrometerStandard (for micrometers 2" and above)Wrench Fitted case
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