Faithfull FAIPITCHMW Screw Pitch Gauge 52 Metric Whitworth

Combination of 52 Whitworth standard 55 degree and Metric standard 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 Whitworth threads.
Manufactured from high-quality polished tool steel.
Features a locking device at both ends to securely lock the leaves.