Starrett 6 Screw Pitch Gage With Locking Device, 4-42 Threads Per Inch, 30 Leaves
Starrett screw pitch gauge is among the most useful tools in any mechanics tool box. They quickly determine the pitch of various threads. This gauge consist of a substantial steel case with a number of folding leaves at both ends, each leaf having teeth corresponding to a definite pitch, marked on each leaf.
