Faithfull Screw Pitch Gauge 52, Metric, Whitworth

The Faithfull FAIPITCHMW Screw Pitch Gauge 52 Metric Whitworth is a handy gauge which quickly determines the pitch of various screw threads.
The high-quality polished tool steel leaves are clearly marked with size and there is a locking device at both ends to securely lock the leaves.

Specifications:

Number of Leaves: 52.
Whitworth Standard 55 Degree Threads.
Metric Standard 60 Degree Threads.