GOCHANGE 4Pcs Screw Thread Pitch Cutting Gauge Tool Set Centre Gage 55° Inch System & 60° Metric System</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Screw thread pitch cutting gauge tool set 4pcs centre gage 55° Inch System & 60° Metric System</li><li>Typically used to check the thread size determination is correct</li><li>Screw thread pitch Inch & Metric， 52 pcs</li><li>metric total of 24 tablets， according to the number of pitches per piece， said pitch 0.25-6mm</li><li>Inch total of 28 tablets， each in accordance with the number of teeth per inch to represent the number of teeth 4-62</li></ul></div></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br><img src='http://ecx.images-amazon.com/images/I/51aY2oFEBpL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/51PLAA-s0jL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/51LAHxN5EHL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/41M2%2BqwWqlL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/41XA6yNDFvL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/51y-azXvvbL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/51DDLkGAR7L.jpg' noproxy></br>