A tachometer designed to be held in the hand and whose spindle is driven by manually pressing it to the rotating object.
NSN 6105-01-372-5755
NSN 5915-01-540-7361
NSN 6110-01-354-2885
NSN 5999-00-139-1502
NSN 5895-01-532-8759
NSN 5999-01-151-5224
NSN 6610-01-633-8931
NSN 5930-01-176-3614
NSN 6685-01-064-4384
NSN 5920-01-219-5298
NSN 5990-00-853-9926
NSN 2925-01-629-9416