Special featuresRefills suitable for marking and writing on all surfaces: dusty, rough, smooth, greasy, wet and darkFlame resistant and heat resistant, markings do not fadeIdeal for drawing fine lines, especially in the metallurgical sectorMarkings shine during cutting and weldingSuitable for precision work and demanding applicationsColour: graphiteNumber of pieces: 6 Technical dataMaximum temperature: 40°CType: refills for marking pencilApplication: fine lines, markings on various surfaces