... Metal Hole Punch 1.thick:0.2-12mm 2.open area:10%-70% 3.width:0.5m-3m 4.shape:Round, Square Galvanized Rectangular Metal Hole Punch Punch Metal ... /Punched Metal/perforated metalMaterialCarbon steel, Aluminum, ... punched/perforated metal,please contact us without hesitate,Tell us the Materials,Hole shap,Thinckness, ...