A tachometer designed to be held in the hand and whose spindle is driven by manually pressing it to the rotating object.
NSN 5985-01-096-6850
NSN 5920-01-634-0250
NSN 5950-01-318-6662
NSN 6685-01-245-7956
NSN 5990-01-408-6554
NSN 6135-01-338-2281
NSN 7035-00-703-3535
NSN 5945-01-235-7698
NSN 6220-01-515-8722
NSN 6685-00-160-1313
NSN 6240-00-557-3426
NSN 5905-01-613-9430