A tachometer designed to be held in the hand and whose spindle is driven by manually pressing it to the rotating object.
NSN 6645-01-467-9983
NSN 5985-00-156-4536
NSN 5935-01-319-7719
NSN 5975-01-306-0558
NSN 5855-00-058-1293
NSN 6220-01-316-8357
NSN 5925-01-407-4105
NSN 2925-01-168-6253
NSN 5925-00-983-0214
NSN 6650-00-826-7396
NSN 5925-01-071-5404
NSN 5975-00-050-9938