A tachometer designed to be held in the hand and whose spindle is driven by manually pressing it to the rotating object.
NSN 2925-01-400-2286
NSN 5935-01-325-7480
NSN 6150-01-317-3294
NSN 5915-01-378-8220
NSN 6220-01-303-4577
NSN 5965-00-285-0745
NSN 5960-01-641-5493
NSN 5945-01-131-6396
NSN 6610-00-479-0681
NSN 5998-01-423-1495
NSN 6240-01-414-6074
NSN 5999-00-613-9043