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,use thread gauges blades of different sizes to accurately measure internal and external threads
It is useful to check the tool angle when cutting threads on a metal lathe; Check the angle on the thread cutting tool on the V-groove of the gauge
Screw gauge tool set is made of stainless steel and processed with chrome finish. Surface polished smooth, applying anti-rust oil to prevent rust.good resilience, elegant appearance.Ensure the accuracy of measurement
There is a small hole at both ends, which is convenient for adjustment and disassembly with screws. You can easily rotate the thread pitch gauge blade where you press the tooth thread gauge. The numbers are clearly marked and easy to read