A tachometer designed to be held in the hand and whose spindle is driven by manually pressing it to the rotating object.
NSN 6220-01-044-5552
NSN 6145-01-406-5051
NSN 6620-01-278-3346
NSN 5985-00-559-3973
NSN 6320-01-157-4400
NSN 5950-01-294-7122
NSN 6610-01-056-7499
NSN 6620-00-506-0112
NSN 5999-01-062-0739
NSN 6650-01-395-5991
NSN 5905-01-299-1435
NSN 5895-00-596-8678