The Value-Tec CS1 carbide tipped scriber is intended for scribing and marking samples, sample mounts, embeddings and parts. Equally useful for scribing or marking for wafer cleaving. Sharp 45° tungsten carbide tip on a 3.2mm (1/8) shaft. The tungsten carbide tip can scribe in steel, brass, aluminum, copper, plastics, etc. Can be used to scribe glass, but will wear quicker than diamond scribers. Pen type scriber with a body diameter of 7.5mm and a total length of 150mm. Sleek knurled coated steel body for excellent grip with a removable clip.