H, B, or F??? Pencil Grades Defined
According to the source referenced below, an explanation of the letters on an HB Pencil Grading Chart:
H = hardness of the graphite ~ lighter tone on paper
B = blackness of the graphite ~ softer graphite ~ darker on paper and blends/smudges
F = Sharpens to a fine point
H = hardness of the graphite ~ lighter tone on paper
B = blackness of the graphite ~ softer graphite ~ darker on paper and blends/smudges
F = Sharpens to a fine point
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