A tachometer designed to be held in the hand and whose spindle is driven by manually pressing it to the rotating object.
NSN 5920-01-566-1747
NSN 5835-00-461-3342
NSN 5935-01-365-7452
NSN 5998-01-138-5461
NSN 6645-00-930-9356
NSN 6150-00-774-9369
NSN 5998-01-029-7365
NSN 4140-01-623-0064
NSN 5999-01-423-0621
NSN 5998-01-044-9981
NSN 6110-01-196-4886
NSN 6240-00-381-5833