An F graphite pencil is a graphite pencil with a graphite core and a fiberglass top. The core is hollow, while the top is made from a hollow fiberglass tube. The F graphite pencil has the potential to be a very durable pen or pencil. It does have some issues, such as a tendency for the core to get brittle. There is some debate as to whether an F graphite pencil could survive the impact of a baseball bat or a high-caliber firearm cartridge. We found one report in which the core of an F graphite pencil shattered without any visible damage to the pen. I would advise any who might come across an F graphite pencil to take that report with the following warning: Please do not use an F graphite pencil on an intact body or in the mouth of a child without direct instruction from an experienced pen user.
F graphite pencil vs. F graphite pencil in the hand
As mentioned earlier, for some applications, such as drawing and handwriting, an F graphite pencil in a pencil box is not enough of a pencil. A F graphite pencil with a flexible core with a fiberglass tube is ideal. You can use one in an inked fountain pen, or you can use one in an eraser. For a pen I bought that features two interchangeable nibs (A2 and V9), I could use one in a pencil box and one in one of the nibs with a flexible core. This allows you to have both flex nibs and a stiff core in one package. The downside to these soft core nibs is that you get better nib performance and are not in a situation where you need to worry about bending ink on the paper.
An F graphite pencil has a nice balance of flex, writing comfort, and flex nib performance. The pencil, and a nib, in a pencil box is easy to use. I have never found any of my pencil books to be too cumbersome during use, for example, I have never had to worry about my pencils getting loose when I am on the run; I can just pull them out and put them back in its box. Flex nib pencils perform well, as well as hard core nibs (hardcore nibs need to be stored in a separate pen case).
How I use an F graphite pencil
I like to write with a F graphite pencil. I would like to recommend these pencils more widely in the future, but I am also aware that these pencil
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