WUQ 52-229-213-0 Outside Micrometer Set 0-3" (3 pcs)

WUQ Outside Micrometer Set 0-3

The WUQ 52-229-213-0 set provides three vernier micrometers covering 0" to 1", 1" to 2", and 2" to 3" for general purpose dimensional inspection. Each instrument features a flat anvil and spindle pair with .256" diameter carbide measuring faces. Microfine .0001" graduations on a satin chrome finish allow precise readings in workshop and quality control environments. The set includes 1" and 2" standards, an adjusting wrench, and a fitted case.

Installation and Common Issues

Zero adjustment is performed on the sleeve using the supplied wrench before each measuring session. The positive locking nut on the spindle secures the reading once the workpiece is contacted. A ratchet stop thimble delivers constant measuring force and an audible click, reducing operator variation. Applying excessive torque beyond the ratchet click can degrade the .00003" flatness and .00005" parallelism specifications on the 0" to 1" micrometer. Keep the lapped spindle threads clean and lightly oiled to maintain smooth movement.

Pre-Purchase Checks

Verify that the 0" to 3" measuring range matches the maximum dimension of the parts you intend to inspect. Confirm that the .0001" vernier resolution meets your tolerance requirements without needing a digital readout. Ensure your workflow can accommodate manual reading of satin chrome scales under available shop lighting. The set is not suited for internal bore, depth, or thread measurements that require specialised anvil profiles.