A tachometer designed to be held in the hand and whose spindle is driven by manually pressing it to the rotating object.
NSN 5905-01-026-4714
NSN 5950-01-061-4983
NSN 4140-01-611-2955
NSN 5920-00-455-9743
NSN 6685-01-472-4397
NSN 2925-01-633-0225
NSN 6240-01-466-4718
NSN 5945-01-269-0581
NSN 7035-01-309-6709
NSN 6685-00-438-9377
NSN 6135-00-455-2425
NSN 6650-01-037-9755