Tightens locknuts on 1/2" and 3/4" EMT thin-wall and rigid-wall conduit|Knurled jaws at tip|Pliers halves are matched side-to-side, jaw-to-jaw, and hot riveted|Precision machined, mating surfaces and design dimensions, to extremely close tolerances|Tightens 3/8", 1/2", and 3/4" liquid tight fittings