A tachometer designed to be held in the hand and whose spindle is driven by manually pressing it to the rotating object.
NSN 2925-01-279-1558
NSN 5998-00-882-8589
NSN 5905-01-254-4349
NSN 6150-01-069-0927
NSN 5999-00-874-6867
NSN 5975-00-914-7689
NSN 6110-01-406-6324
NSN 6150-00-538-1176
NSN 5935-00-236-6496
NSN 2925-00-964-7128
NSN 6685-00-420-2781
NSN 6645-00-230-4396