A tachometer designed to be held in the hand and whose spindle is driven by manually pressing it to the rotating object.
NSN 6110-00-987-6971
NSN 6645-01-139-0156
NSN 5975-00-258-3056
NSN 2925-00-824-2186
NSN 6610-01-371-3006
NSN 5975-00-586-8113
NSN 4140-01-660-5997
NSN 5835-01-152-9483
NSN 5855-00-198-3197
NSN 5920-00-317-2219
NSN 5895-01-069-8851
NSN 5999-01-177-9194