Product Description
28 PIECE SCREW THREAD GAUGE (INCH AND METRIC)
Screw thread gauge measures both male and female (15 gauges from 6-32 (.138") to 1/2"-20 inch) and (13 gauges from M3-0.5 to M12-1.75 metric) sizes of fasteners.
Screw gauges on a stainless steel wire.