Screw Mechanical Pencil, 2 mm, Grade 520

Screw Mechanical Pencil, 2 mm, Grade 520.

A mechanical pencil holds a fixed-diameter lead that advances as it wears, so the line stays exactly the same width from the first stroke to the last — no sharpening, no changing weight.

That consistency is why drafting is done with them. Choose the diameter by the work: 0.5 mm for fine detail and technical drawing, 0.7 mm for general writing, 0.9 mm and 2 mm for sketching where a broader, softer line is wanted.

• Constant line width — no sharpening needed
• 0.5 mm for detail, 0.7 mm for writing, 0.9 mm and up for sketching
• Refillable — buy leads in the matching diameter