1N, 1-1/3N, 1-1/2N, 1-3/4N, 2N, 2-1/2N, 3N, 3-1/2N, 4N, 5N, 6N, 7N, 8N, 9N, 10N, 12N. 29 Degree Angle 1N-12N. 16 Blades With Each Size For Use When Quick Identification Of Screw Threads Is Needed.
Vintage Craftsman Screw Pitch Gauge Set 4031 England
Snap On Tools Thread Pitch Gauge SAE + Metric Screw Checker USA Snap-On Blue
Snap On Tools Thread Pitch Gauge SAE + Metric Screw Checker USA Snap-On Red
Triumph Norton BSA etc Whitworth Thread Pitch Gauge 4-84 TPI PN# TBS-4158
Snap-on Tools USA NEW SAE Thread Pitch Gauge TD1040A
Snap-on Tools USA NEW Metric Thread Pitch Gauge TDM100A
