Manufacturer: Fred V. Fowler Company, Inc.
Brand: Fowler
Model: 52-218-721-0
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The Fowler 52-218-721 EZ-Read digit micrometer has a 0 to 1" measuring range and a spline-style anvil/spindle pair with a 0.118" pin diameter and 0.396" length to measure recesses, grooves, and splines. The digit display has 0.0001" graduation intervals and an accuracy of 0.0002" for precise readings, and precision-ground measuring faces provide accurate measurements. A friction thimble provides smooth and quiet operations, and is suitable for one-handed operation. Friction-style thimbles stop turning when the spindle comes into contact with the workpiece, providing constant force for consistent measurements between operators. The micrometer includes a fitted case. SpecificationsDisplay type Digit Anvil/spindle style Spline Measuring range 0 to 1" Graduation interval 0.0001" Accuracy 0.0002" Thimble style Friction Spline diameter 0.1180" Spline length 0.396" Anvil/spindle diameter 0.256"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 52-218-721 digit micrometer Fitted case