A tachometer designed to be held in the hand and whose spindle is driven by manually pressing it to the rotating object.
NSN 5905-00-442-5431
NSN 5996-00-520-4370
NSN 5910-01-172-9675
NSN 5855-01-414-6265
NSN 6110-01-469-5921
NSN 6135-00-152-8729
NSN 5999-01-633-9167
NSN 5835-01-251-7301
NSN 6240-01-458-3396
NSN 6685-00-186-9190
NSN 5950-01-432-0242
NSN 5895-01-398-2289