Starrett gauge, 3.1/2-60 TPI, screw pitch, 55 degree, 30 leaves

Description

Starrett 476 Screw Pitch Gauge tpi 3.1/2 – 60

FEATURES:

• Quickly determines the pitch of various external and internal threads
• Consists of a substantial steel case with a number of folding leaves at both ends
• Each leaf has teeth corresponding to a definite pitch
• Positive stop