Tuesday, September 7, 2010

Standard drafting pen sizes, line weights, and thicknesses

Since I never can seem to find this information when I want it, I am posting here the standard drafting pen weights and thicknesses as used by the pen manufacturer Koh-I-Noor.
Pen sizeLine thickness (mm)
0000000.13
00000.18
0000.25
000.30
00.35
10.50
20.60
2.50.70
30.80
3.51.0
41.2
61.4

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