A tachometer designed to be held in the hand and whose spindle is driven by manually pressing it to the rotating object.
NSN 6645-01-523-8809
NSN 5965-00-234-7338
NSN 5960-00-987-1897
NSN 5990-00-931-0594
NSN 5999-01-298-1195
NSN 5985-01-572-6217
NSN 6620-00-404-0149
NSN 5835-01-228-8666
NSN 5990-01-642-1668
NSN 6240-00-899-6990
NSN 5945-01-361-7118
NSN 6105-00-080-5537