Reddit reviews Tungsten Carbide Scriber with Magnet - Aluminum Etching Engraving Pen with Clip for Glass/Ceramics/Hardened Steel by Fabcell

★Scriber features a heavy duty tungsten carbide tip that marks hard materials including hardened steel, stainless steel, ceramics and glass★Permanent magnet on the etching tool picks up small parts and retrieves steel chips from hard-to-reach places★Handy pen-style design with convenient pocket clip, knurled aluminum handle provides maximum control and comfort★Scriber point reverses for safety, engraving pen comes with a chuck for reversing tungsten carbide point when not in use, scribe is an essential machining tool★Scribe tool point is replaceable, each package comes with 1 free replacement carbide tip for use