3H Lead Grade
The 3H lead grade falls in the 8th position of 22 on the widely recognized 10H-10B scale (H=hard, B=black). 3H is a somewhat hard lead grade, for creating light, fine lines with some darkness and smoothness. Great for technical drawing and outlining.
Filter
Ultra Polymer Leads Refill
Tombow
Super Polymer Leads Refill
Faber-Castell
Mars Micro Leads Refill
Staedtler
Technograph Graphite Pencil
Caran d'Ache