5pcs Imperial Thread Plug Gauge 2B Unified Thread Gage w/Boxes, Double End Go No Go Thread Gauge for Internal Thread Detection(#1/4 - #1/2)

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About This 5 Dimensions: This thread plug gauge set comes in the following sizes: 1/2 - 20UNF, 7/16 - 14UNC, 1/4 - 20UNC, 1/4 - 28UNF, 3/8 - 16UNC. They can meet your different mea suring needs. High Precision: The thread plug gauge has an accuracy of 2B and features both Go - Gauge and No - Go Gauge designs. Go - Gauge (T): It is mainly used to test whether the functional pitch diameter and major diameter of threads are within the qualified range. No - Go Gauge (Z): It is used to test whether the actual center diameter of the thread is beyond the maximum allowable value. Premium Material: The measuring head of the thread plug gauge is made of bearing steel, which is strong and wear-resistant. Suitable for multiple uses. Easy to Carry: Each through stop measurement hand tool comes with a small box. This not only effectively prevents the thread plug gauge from being damaged, but also makes it easy to store and carry. Wide Application: The pitch diameter measurement tool can be used for thread inspection for machinery manufacturing with high strength requirements, automotive parts and so on. Suitable for machinery manufacturing, automotive manufacturing and other industrial scenarios. Show more