4121-16N INCH THREAD RING GAGE - NoGo • Accuracy grade 2A (optional grade 3A) • Standard ANSI B1.2 • Larger sizes are available upon request ... more info

4121-1A1 INCH THREAD RING GAGE - Go • Accuracy grade 2A (optional grade 3A) • Standard ANSI B1.2 • Larger sizes are available upon request • ... more info

4121-1A1N INCH THREAD RING GAGE - NoGo • Accuracy grade 2A (optional grade 3A) • Standard ANSI B1.2 • Larger sizes are available upon request ... more info

4121-1A2 INCH THREAD RING GAGE - Go • Accuracy grade 2A (optional grade 3A) • Standard ANSI B1.2 • Larger sizes are available upon request • ... more info

4121-1A2N INCH THREAD RING GAGE - NoGo • Accuracy grade 2A (optional grade 3A) • Standard ANSI B1.2 • Larger sizes are available upon request ... more info

4121-1A3 INCH THREAD RING GAGE - Go • Accuracy grade 2A (optional grade 3A) • Standard ANSI B1.2 • Larger sizes are available upon request • ... more info

4121-1A3N INCH THREAD RING GAGE - NoGo • Accuracy grade 2A (optional grade 3A) • Standard ANSI B1.2 • Larger sizes are available upon request ... more info

4121-1B1 INCH THREAD RING GAGE - Go • Accuracy grade 2A (optional grade 3A) • Standard ANSI B1.2 • Larger sizes are available upon request • ... more info

4121-1B1N INCH THREAD RING GAGE - NoGo • Accuracy grade 2A (optional grade 3A) • Standard ANSI B1.2 • Larger sizes are available upon request ... more info

4121-1B2N INCH THREAD RING GAGE - NoGo • Accuracy grade 2A (optional grade 3A) • Standard ANSI B1.2 • Larger sizes are available upon request ... more info