This screw pitch gauge is designed for measuring both internal and external threads. It contains 51 leaves and covers Whitworth and metric thread sizes from 4–62 BSW and 0.25 mm–6 mm. It is suitable for automotive and engineering applications.

Features:

• Measures internal and external threads
• 51 leaves included
• Whitworth and metric thread coverage: 4–62 BSW and 0.25 mm–6 mm
• Suitable for automotive and engineering applications