A tachometer designed to be held in the hand and whose spindle is driven by manually pressing it to the rotating object.
NSN 5998-01-654-5063
NSN 6130-01-513-1956
NSN 2925-01-426-3410
NSN 6620-00-137-0332
NSN 6645-01-056-5291
NSN 5950-01-393-6437
NSN 5998-01-649-7574
NSN 6220-01-634-0660
NSN 5910-01-141-6372
NSN 6110-01-043-4179
NSN 5835-00-617-3578
NSN 5835-00-010-4307