Gugxiom 34 Thread Tester for Nuts and Screws, Thread Gauge with 19 Standard and 15 Metric Threads, Measuring Tools for - ShopVlot

34 MOTHER AND SCREW HANGS: This nut and screw box detector offers 19 standard and 15 metric specifications. It includes thread specifications from #6 to 3/4 inch and from 4mm to 16mm. This threaded tube covers the most common specifications, so you can quickly find the right fit for your accessories. 8 drill blades: This metric and imperial thread gauge is equipped with 8 different drill holes, including 4mm/6mm/8mm/10mm/12mm/14mm/1/4inch/1/2inch. It plays an important role in identifying old dr