A tachometer designed to be held in the hand and whose spindle is driven by manually pressing it to the rotating object.
NSN 5985-00-145-2962
NSN 5910-00-201-1874
NSN 6645-01-188-0213
NSN 6220-00-808-3655
NSN 5915-01-408-7411
NSN 6135-00-228-8140
NSN 5965-01-375-5238
NSN 5950-01-481-4959
NSN 5835-01-394-7589
NSN 6110-01-631-4165
NSN 6240-00-347-7118
NSN 4140-01-467-6319