Starrett 762XFL Digital Micrometre Head, Non-Rotating Spindle, 0-1" Range, 0.00005" Graduation, +/-0.0001" Accuracy, Friction Thimble, Lock Nut, Carbide Face

The Starrett digital micrometre head has a digital single-value LCD readout that displays in inch and metric units with resolution to 0.00005” (0.001mm), a Vernier scale graduated in inch units, and a knurled ring-type lock nut to hold measurements in place. It has a plain stem for mounting in a fixture with a split-body clamp or setscrew. The micrometre has a flat measuring face for measurement or use as a stop, and is carbide-tipped for wear resistance and micro-lapped to help provide accuracy. The micrometre is available with a non-rotating spindle to help prevent wear on the workpiece. The micrometre's electronic microprocessor can hold measurements at any position, convert to absolute value, set a temporary zero position, and return to a true zero reading. It also has a preset to install a reading at any position. The micrometre has Statistical Process Control (SPC) data output to transmit results to a computer or external device. The output jack transmits SPC results to a computer through an interface cable (sold separately). The micrometre includes, and is powered by, a single CR2450 lithium cell battery. Micrometres 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. Micrometres are typically used in manufacturing, machining, and mechanical engineering. There are three types of micrometre: outside, inside, and depth. Outside micrometres may also be called micrometre callipers, and are used to measure the length, width, or outside diameter of an object. Inside micrometres are typically used to measure interior diameter, as in a hole. Depth micrometres measure the height, or depth, of any shape that has a step, groove, or slot. Micrometre heads are for mounting in fixtures, where they are typically used for measurement, or as stops or feeds.