This pen is my all around...
November 6, 2013
This pen is my all around favorite for industrial design sketching. Makes clean,
fine, sharp long fast lines on cheap multipurpose printer paper. Consistent.
Pretty resistant to blobbing. Black is really black. Decently comfortable grip.
Good balance. Cap is secure when on either end.
Love the whole UM-151 line - 0.28mm, 0.38mm, and 0.50mm. The blue-black,
brown-black, and green-black are also great.