A tachometer designed to be held in the hand and whose spindle is driven by manually pressing it to the rotating object.
NSN 6240-00-038-7540
NSN 6620-01-408-4464
NSN 5930-01-660-0773
NSN 6135-00-505-0679
NSN 5895-00-233-5901
NSN 6620-01-367-2597
NSN 6130-01-377-0370
NSN 6220-01-129-5415
NSN 6220-00-734-0276
NSN 5985-01-629-9427
NSN 5996-00-288-1829
NSN 5925-01-459-4686