A tachometer designed to be held in the hand and whose spindle is driven by manually pressing it to the rotating object.
NSN 6110-01-113-1581
NSN 2925-01-161-7440
NSN 6650-00-161-4122
NSN 6220-01-255-5067
NSN 6610-01-393-5475
NSN 6620-01-287-1443
NSN 6145-00-220-9660
NSN 6145-01-070-8858
NSN 6610-01-185-5832
NSN 6220-00-354-8287
NSN 5960-00-974-7852
NSN 5925-00-437-2854