Pentel Super Hi-Polymer® Lead refill has 0.7 mm leads to offer smooth writing. Pencil 'Lead' Pencil lead is made of a mixture of graphite and clay. Some claim their product has a hardness of 10H, 9H or 8H. 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. STEIN stands for "Strongest Technology by Enhanced SiO2 Integrated Network". Drawing is one of the few art practices you can do with the least amount of art supplies. The term ‘HB’ is universal and is usually printed on all pencils. Also, any number in front of HB, or B, or H simply indicates the shade of the lead. 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). Saved by JetPens. The Cult Pens Guide to Pencil Lead Hardness. 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. The higher the number, the harder the coating is. 4B 9. 2H Pentel lead refill offers increased hardness and strength. Pentel 0.5mm Mechanical Pencil Lead For paper surfaces, formulated with polymer resin bonded to carbon and graphite particles that never need sharpening. Product Details. Everything You Need to Know About Pencil Lead Hardness. Pencils usually have some letters and numbers on them - HB, 2B, 4H, or even just numbers - 2, 2 ½, etc. Thus, the “H” stands for hardness, and the “B” stands for blackness. Pencil hardness guide. 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. Pencil Hardness BHN. Much cheaper that a lead hardness tester and very quick. What does the “HB” in Pentel Super Hi-Polymer HB lead stand for? Different types of determining the hardness. How to change lead hardness in Pentel Graph Gear 1000? 6B 4-5. It means that the pencil is hard and black, and depicts the hardness and the nature of the color used in the pencil. These leads break less, last longer, write smoother and produce dense black lines that resist smearing and fading. According to the shade chart, the HB pencils range in the middle of the chart. A harder/tougher coating would withstand more wear and tear and offers better scratch resistance. 7. This article is intended to explain what those odd little codes actually mean. The HB system is a way for manufacturers to rate the hardness and blackness of a pencil. "HB" is a universal term meaning "Hardness" and "Blackness". Each container contains 40 pieces of lead. The Pentel Stein Enhanced Silica Pencil Lead features a reinforced silica core that makes the Stein Pentel's smoothest, strongest, sharpest pencil lead yet! 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