A tachometer designed to be held in the hand and whose spindle is driven by manually pressing it to the rotating object.
NSN 6650-01-544-0366
NSN 6145-01-492-6672
NSN 6240-00-383-7668
NSN 6620-00-243-1759
NSN 6620-00-119-2803
NSN 5930-01-634-0659
NSN 5910-01-324-8438
NSN 5999-01-519-2209
NSN 5905-01-647-5541
NSN 6320-00-456-0836
NSN 5965-00-087-6767
NSN 5855-00-688-9954