Pentel Super Hi-Polymer Lead Refills for Mechanical Pencils
Sizes: 0.3, 0.4, 0.5, 0.7, 0.9mm
Lead Grades: HB, H
Made in Japan
Mechanical pencil refill leads. The 0.3 leads are very fine and more prone to breakage than larger sizes, but are excellent for rendering fine details. I prefer to use larger sizes for sketching or filling in larger areas, and finer sizes for detail work.
HB is the lead grade that comes loaded in our Graphgear 1000 and 500 mechanical pencils. H is harder and therefore lighter. If you want a lighter drawing H is very useful.