The Micron pen will not clog or dry out, unlike most technical pens, and is excellent for technical drawings.
Pigma Micron Pen 005 Black .20Mm
Pigma Micron Individual Pens - Black – K. A. Artist Shop
Pigma® Micron® Black Fine Line Design Pen – 6-Pack – The Foiled Fox
Writes like a pen and paints like brush two methods in one elegant tool. Swirls, doodles, fine lines, and broad brush strokes are possible with this
Pigma Micron 005 Pen .20mm Black
Sakura Pigma Micron 005 Pen Black .20mm – A Work of Heart
Sakura of America Pigma .20mm Fade-resistant Micron Pens (XSDK00549)
PIGMA Micron 005, Ultra Fine Bible Note Pen/Underliner, Red
Sakura Pigma Micron pen 005 Blue ink marker felt tip pen, Archival pigment ink pens, 0.20mm line-width fine point for artist, technical drawing pens - 8 pack of Micron 005 blue
Pigma Micron Pens Assorted 4/Pkg-Black, Sepia - 053482500476
Sakura Pigma Micron Pens make your writing appear delicate and special. These fine tip pens work well for memory albums, decorative painting, quilt
Pigma Micron Pen 005 - Black 0.2mm