Staples.com: Pentel Super Hi-Polymer® Lead Refills, Medium Point 0.7mm, HB Hardness Lead, 90/Pk with fast and free shipping on select orders. Different types of determining the hardness. What does the “HB” in Pentel Super Hi-Polymer HB lead stand for? How to change lead hardness in Pentel Graph Gear 1000? Pentel Super Hi-Polymer® Lead refill has 0.7 mm leads to offer smooth writing. 5B 7-8 . Help Trying to fix my Graph Gear, and I think part of the issue is that the pencil is set on the wrong hardness level for the lead being used (didn't realize that was a factor by the lead and not the pencil until 5 minutes ago). In the world of detailing it is very common to see a coating with a hardness being mentioned. STEIN stands for "Strongest Technology by Enhanced SiO2 Integrated Network". There are different levels of hardness and different levels of blackness to choose from, however, HB is known to be the standard and the equivalent to a #2 wooden pencil. Pentel Super Hi-Polymer® Lead refill includes 0.7 mm H leads to provide smooth/uniform marking for your everyday writing, sold as 12 leads. 7. These leads break less, last longer, write smoother and produce dense black lines that resist smearing and fading. Mechanical Pencil Lead Mechanical Pencils Drawing Lessons Drawing Tips Pencil Grades 2b Pencil Pencil Art Jet Pens Art Tips. Thanks for the request! Each container contains 40 pieces of lead. The HB system is a way for manufacturers to rate the hardness and blackness of a pencil. Pencil Hardness BHN. Drawing is one of the few art practices you can do with the least amount of art supplies. The Cult Pens Guide to Pencil Lead Hardness. Everything You Need to Know About Pencil Lead Hardness. 0.5 mm lead refill creates a fine, delicate line. Much cheaper that a lead hardness tester and very quick. 2H Pentel lead refill offers increased hardness and strength. 4B 9. According to the shade chart, the HB pencils range in the middle of the chart. Hard H lead refill is made of 100 percent recycled content for long durability, sold as … This article is intended to explain what those odd little codes actually mean. Saved by JetPens. 6B 4-5. Pentel 0.5mm Mechanical Pencil Lead For paper surfaces, formulated with polymer resin bonded to carbon and graphite particles that never need sharpening. Pencils usually have some letters and numbers on them - HB, 2B, 4H, or even just numbers - 2, 2 ½, etc. The higher the number, the harder the coating is. Instead of me posting his chart here, you can pull his video up on u-tube and watch him do his thing and copy down his chart. Also, any number in front of HB, or B, or H simply indicates the shade of the lead. Thus, the “H” stands for hardness, and the “B” stands for blackness. Pencil hardness guide. Some claim their product has a hardness of 10H, 9H or 8H. 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