For near perfect positioning, the spindle on these micrometer heads moves in smaller increments than the spindle on any other micrometer head we offer. Mount them in equipment requiring extremely precise adjustments, such as positioning tables used in semiconductor manufacturing or in optical component alignment. Their round spindle tip minimizes alignment errors. The thimble turns freely without friction or a stopping device, so they rely on user feel. They are held in place by the cylindrical mounting hub using your existing brackets or fixtures. For a tight hold and extra support, secure the clamp nut against the bracket or fixture on the mounting hub.

Spindle length is the maximum extended distance when the micrometer head is set at zero.