Komelon King Tool Combo Magnetic-End Tungsten-Carbide Tip Scribe, 4 1/2", Aluminum: * Clearly mark the hardest materials with a replaceable tungsten-carbide tip * Diamond-pattern knurling helps you get a good grasp * Pen-style design features a protective cap and handy pocket clip * Scriber Type: Scriber * Applicable Material: Metal * Tip Material: Tungsten Carbide * Handle Material: Aluminum