Galvanized Triangle Hole Punches 1.thick:0.2-12mm 2.open area: ... % 3.width:0.5m-3m 4.shape:Round, Square Galvanized Triangle Hole Punches Punch Metal /Punched Metal/perforated metalMaterialCarbon steel, Aluminum ... .FinishPowder coated,galvanized,polished,or no finishHole shapeRound, Square, Slot, Triangle, Long round, Scale, Diamond, Oval, Hexangular, etcHole dia*pitch(mm ...