Fowler Screw Pitch Gage with 24 Blades

• 24 blades, 0.25mm to 6.0mm
• Narrow designed blades permit use for internal and external screw threads
• Locking device at each end to secure all blades for storage or position• Correct pitch is determined by matching blade teeth with threads• Precisely ground and finished• Blades marked with thread size
*Image shown for representational purposes only