Faithfull FAIPITCHMA Screw Pitch Gauge 55 Metric Amer-nat

Combination of 55 Metric standard 60 degree and American National 60 degree leaves per gauge (0.25 to 6.0mm).
Leaves are clearly etched with the size and are used to determine the pitch of various Metric and American National threads.
Manufactured from high-quality polished tool steel.
Features a locking device at both ends to securely lock the leaves.