HB Pentel Super Hi-Polymer Lead Refills for Mechanical Pencils, Size 0.5mm
Made in Japan
Mechanical pencil refill leads. These leads are fine and slightly more prone to breakage than larger sizes. They are excellent for details and general sketching. I like to use this size to refine a sketch I have done with a traditional wood pencil or a .9 mechanical pencil. HB is the what comes loaded in our Graphgear 1000 mechanical pencils.