Thread pitch gauge
Thread Pitch Gauge
A thread
gauge, also known as a screw gauge or pitch gauge, is
used to quickly measure the pitch or lead of a screw thread by
matching the teeth on the leaves with teeth on the work. The uppermost gauge in
the image is an ISO metric pitch gauge, the larger gauge in the
centre is for measuring the Acme thread form, and the lower gauge is
for Whitworth screws.
