A tachometer designed to be held in the hand and whose spindle is driven by manually pressing it to the rotating object.
NSN 5935-00-221-3720
NSN 5999-01-574-4987
NSN 5920-01-241-0566
NSN 6320-00-483-0451
NSN 6240-01-146-9197
NSN 5905-01-320-4371
NSN 5965-01-218-7795
NSN 5930-01-520-8649
NSN 6650-00-304-6987
NSN 5945-01-207-7040
NSN 5925-01-644-5658
NSN 6135-01-040-1446