14 Härtegrade von weich bis hart:

8B - 7B - 6B - 5B - 4B - 3B - 2B - B - HB - F - H - 2H - 3H - 4H

Minen °2mm - beste Profi-Qualität - hohe Bruchfestigkeit - hohe Deckkraft - 12 Minen in Schiebeschachtel - Graphite leads of the highest quality for mechanical pencils in 20 grades of hardness with lead diameter of 2 mm. Depending on their hardness they are suitable for artists and technical drafting.

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