Features: 1. Thread gauge, usually used to verify whether the thread size is correct. 2. The thread size consists of the thread diameter and pitch. 3. It is usually necessary to know the thread size of the inspection when using the thread gauge. 4. 51pcs 60° U.S.system, each of which has a value of 4, 4-1/4, 5, 5-1/4, 6, 7, 8, 9,10, 11, 11-1/2, 12 , 13, 14, 15, 16, 18, 20, 22, 24, 26, 27, 28, 30, 32, 34, 36, 38,40, 42, 44, 46, 48, 50, 52, 54, 56 , 58, 60, 62, 64, 66, 68, 70, 72, 74, 76, 78, 80, 82, 84. 5. Made of high quality material. solid and durable. Specification: Condition: 100% Brand New Item Type: Degree Gauge Material: No. 45 steel cold rolling Weight: 60g / 2.1oz Package list: 1 * Thread Gauge Note: 1. Please allow 1-2mm error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. 1、Thread gauge, usually used to verify whether the thread size is correct. 2、The thread size consists of the thread diameter and pitch. 3、It is usually necessary to know the thread size of the inspection when using the thread gauge. 4、51pcs 60° U.S.system, each of which has a value of 4, 4-1/4, 5, 5-1/4, 6, 7, 8, 9,10, 11, 11-1/2, 12 , 13, 14, 15, 16, 18, 20, 22, 24, 26, 27, 28, 30, 32, 34, 36, 38,40, 42, 44, 46, 48, 50, 52, 54, 56 , 58, 60, 62, 64, 66, 68, 70, 72, 74, 76, 78, 80, 82, 5、Made of high quality material. solid and durable.