Sharpie Black Magnum Beveled Permanent Marker Sharpie Pro Metal Magnum Marker. Permanent marker with 15 mm chisel tip. Suitable for most surfaces, even wet and oily. Durable locked toe. Quick-drying black ink, allowing you to produce jobs quickly and neatly, without creating unnecessary smudges. Great for industrial marking of wood, metal, plastic, leather and more. Line width: 15 mm. Brand: Sharpie.