The
Most Loved by Reddit
0 products in this category found across Reddit:
ChgImposs Metric & Imperial & US Screw Gauge SAE Whitworth 55 Degree & Metric 60 Degree & & US 60 Degree Thread Pitch Gauge for Industrial Measurement
It is 55 Degree & 60 Degree Thread / Screw Pitch Gauge gage with lock up device. Typically used to check the thread size determination is correct