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![Photo 1 of [Patent] CKE Upgraded Nut & Bolt Thread Checker (Inch & Metric) Detachable Wire Loop Design - 26 Male/Female Gauges - 14 Inch & 12 Metric Detachable Nut and Bolt Thread Size Checker Identifier Gauges](https://images-na.ssl-images-amazon.com/images/I/61FTIB5qRRL.jpg)