A tachometer designed to be held in the hand and whose spindle is driven by manually pressing it to the rotating object.
NSN 6135-01-641-4356
NSN 5910-00-079-0078
NSN 5985-00-348-3034
NSN 6650-00-801-8298
NSN 5930-01-598-0376
NSN 5895-01-395-2070
NSN 5965-01-116-1886
NSN 5965-00-402-7799
NSN 5998-01-309-5650
NSN 4140-00-761-7761
NSN 5910-01-383-8428
NSN 6150-00-762-8380