A tachometer designed to be held in the hand and whose spindle is driven by manually pressing it to the rotating object.
NSN 5855-00-763-2155
NSN 5935-01-059-6739
NSN 5985-00-064-7103
NSN 6135-00-152-8729
NSN 6110-00-636-1234
NSN 5975-00-518-1830
NSN 6220-01-588-4988
NSN 6110-00-401-7064
NSN 6320-01-173-7950
NSN 5905-01-562-1704
NSN 5910-01-103-0865
NSN 6645-01-504-3394