Tungsten-Carbide Tip ScriberTungsten-carbide point makes highly visible marks on all hardened materials, including stainless steel, ceramics, glass and more. Reversible, replaceable tip allows you to prolong the life of your favorite scriber. Pen-style design with pocket clip helps you keep this handy marking tool close by. Knurled barrel enables a solid grip, even under wet or greasy conditions. Tool Type: Scriber; Applicable Material: Metal; Tip Material: Tungsten Carbide.