![SPI - M4x0.7 No Go Single Ring Thread Gage - Class 6G, Oil Hardened Nonshrinking Steel (OHNS), NPL Traceability Certification Included - All Tool & Supply](http://alltoolandsupply.com/cdn/shop/products/7589031-23_1024x1024.jpg?v=1621885140)
SPI - M4x0.7 No Go Single Ring Thread Gage - Class 6G, Oil Hardened Nonshrinking Steel (OHNS), NPL Traceability Certification Included
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