The pencil “lead” is actually a mixture of graphite and clay. More clay in the mixture makes the lead harder. A harder lead has a higher number. Pencils are numbered from 1-3 but most people use a ...

Common mechanical pencils come in sizes to accommodate 0.5, 0.7, and 0.9 mm leads, but there are bigger and smaller ones available. Perhaps one of those really large drafting lead holders could be ...

When choosing the best drawing pencils, there are several factors to consider. The first is the grade of the pencil, which determines the hardness or softness of the lead. The second is the type ...

35PCS Upgraded Version Artist Set：Come with 6 PCS drafting pencils and 20 tubes of lead refill in 0.5 mm & 0.7mm & 0.9mm & 2.0 mm, 3 pcs 4B erasers, 1 pcs kneaded eraser, 18 pcs cap eraser ...

Using 0.7mm leads for a slightly thicker line, the pencil comes in black or gold. The archetypal architects’s drawing tool, Staedtler’s clutch pencil was the ubiquitous drafting device in the days ...