4932471554 Milwaukee Chisel Tip Marker continues to write after 72+ hours of cap off time plus can be used on wet, oily, dusty, rusty, with debris surfaces making it a real all-round industrial marker. The main features of the 4932471554 Milwaukee Black Marker supplied in a pack of 3 includes quick dry time reducing smearing markings on PVC, metal surfaces, easier to read from a distance due to the increased 6.2mm chisel tip size great for use on various materials including concrete, wood, metal, plywood, OSB and plastic.