Brown & Sharpe 599-265-2 Vernier Inside Micrometer, Interchangeable Rod, 1.5-12.5" Range, 0.001" Graduation, +/-0.0005" Accuracy, With Wooden Case

The Brown & Sharpe vernier inside rod micrometer includes a set of interchangeable rods for a diversified range of measurement of cylinders, rings, and parallel surfaces. It has a vernier scale in inch units graduated to 0.001” for taking precise inside dimension (ID) measurements. The micrometer is made of high-grade tool steel with a satin chrome rust- and glare-resistant finish. The set includes a spacing collar and a handle for secure positioning. The micrometer and accessories come with a wooden case for storage.

Micrometers are precision measuring instruments that use a calibrated screw to measure small 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.

Brown & Sharpe manufactures precision measuring equipment and metrology hand tools. The company, founded in 1833, played a key role in setting industrial standards in the United States. Brown & Sharpe was acquired by Hexagon Metrology in 2001, and is headquartered in North Kingstown, RI.