Left-hand thread gauge, 2pcs/Set GO/NO GO Gage Metric 6g M6 M14 M16 Precision External Screw Fine,Pitch Test Tool(M6x1.0)

【Simple operation】: Simply place the thread ring gauge on the thread to be measured, rotate it until it matches the thread completely, and then read the scale to get the diameter, pitch, thread angle and other parameters of the thread. 【Product Design】: Made of materials, durable 【Product Features】: With good efficiency, easy to store, stable structure and so on. 【Simple operation】: Simply place the thread ring gauge on the thread to be measured, rotate it until it matches the thread completely, and then read the scale to get the diameter, pitch, thread angle and other parameters of the thread., Manufacturer: ByNGSDCC