16 Blades Screw Pitch Gauge 29/30 Degree Angle Thread 1N - 12N

features: 12 Blade pitch gauge 30 degree angle thread 2-20 Pitch gauge 30 degree angle 2-20 12 Include Range Thread Type Pitch 29 ° 1n-12n British/US 1 1-1/3 1-1/2 1-3/4 2 2-1/2 3 3-1/2 4 5 6 7 8 9 10 12 30 ° 2P-20P metric system 2 3 4 5 6 7 8 9 10 12 14 16 18 20 Note: N represents the number of teeth per inch P represents the pitch (mm) Use when fast thread identification is required For measuring V. US National Standard or US Standard 60 Package includes: 1 * Spacer gauge