A tachometer designed to be held in the hand and whose spindle is driven by manually pressing it to the rotating object.
NSN 5835-01-227-2318
NSN 5999-01-537-3199
NSN 6220-01-237-2488
NSN 5998-01-008-6287
NSN 5999-01-417-2123
NSN 6620-01-352-1854
NSN 5835-00-313-7197
NSN 2925-00-246-3077
NSN 6110-00-105-0428
NSN 6150-01-322-7442
NSN 6145-01-399-3871
NSN 6135-01-115-2867