what is the difference between hb and f pencils?
311268
The letter “B” is used to indicate the blackness of a pencil's mark (a darker mark means a softer lead). The letter “F” is used to indicate that the pencil lead is a special formulation that will maintain a fine point.
161336
Pencils are more environmentally-friendly than pens. Pencils need sharpening, while pens are always ready to write. The more you sharpen a pencil, the shorter it gets—and becomes difficult to use.
219423
As the #1 selling mechanical pencil, Bic Mechanical Pencils make writing a smooth and effortless process. ... These #2 lead pencils are perfect for standardized school testing. Pack includes 10 mechanical pencils and three durable #2 leads per pencil.
1416527
There is zero difference in the way whiteboard markers will function on magnetic whiteboards. The only real difference is that presentation accessories work better with magnetic boards. Magnetic boards are not inherently magnetic in the sense that they will not attract metallic substances towards them.
200219
Most pencil cores are made of graphite powder mixed with a clay binder. Graphite pencils (traditionally known as "lead pencils") produce grey or black marks that are easily erased, but otherwise resistant to moisture, most chemicals, ultraviolet radiation and natural aging.
744273
"H" pencils feature harder graphite. ... In other words, a "4H" pencil is harder than a "2H" pencil while a "4B" pencil is softer than a "2B" pencil. Harder pencils produce lighter marks since less of the material is released as pressure is applied. Softer pencils make darker marks since more of the material is released.
594090
As you can see, C flutes are taller, giving C flute corrugated boxes somewhat better cushioning properties than B flute. And because the flutes are shorter, B flute boxes offer a superior printing surface and more rigidity.
238903
B is magnetic flux density, whereas H is magnetic field intensity. H has units of amp-turn/meter, whereas B has units of weber/turn-meter^2. In non-ferrous materials they have a simple inter-relation given by B = mu*H.
687310
Generally, an HB grade about the middle of the scale is considered to be equivalent to a #2 pencil using the U.S. numbering system. In reality however, there is no specific industry standard for the darkness of the mark to be left within the HB or any other hardness grade scale.
442718
For most everyday purposes, such as writing and simple sketching, you'll want to stick in the middle grades, like 2H to 2B. ... Bolder pencils, such as a 2B to a 6B, are great for loose, expressive sketching or shading.
1028289
Fine (F) has a thin writing line. This size of the width is approximately 0.2mm finer than the medium nib width of the same brand. Fine is especially suitable for people with small handwriting. Medium (M) is the most popular nib width.
1255510
The Pencil tool is used to draw free hand lines with a hard edge. ... The main difference between the two tools is that although both use the same type of brush, the pencil tool will not produce fuzzy edges, even with a very fuzzy brush.
69444
1, 2, 2.5, 3, and 4 pencils—and sometimes other intermediate numbers. The higher the number, the harder the core and lighter the markings. (No. 1 pencils produce darker markings, which are sometimes preferred by people working in publishing.)
841423
The 0.7mm leads are thicker, which is better for people who tend to press hard on the pencil when writing. For drawing,use 0.5mm leads, because they're more precise than the 0.7mm leads. The softest lead that is available to fit in a pencil is 120 /a3 0.7 mm.
1284497
Mechanical pencils have the thinner leads. ... Mechanical pencil and automatic pencils are the same product. Lead Holders handle thicker lead. At one time lead holders were made to accommodate 1.3mm, 2mm and 3mm lead, but over time the 2mm has become the standard and is now the only commonly available size.
1260519
Well, first of all, you could just use a number two pencil if you want this is good for seeing if you enjoy it or not. But if you are interested then I would recommend 2H for the light sketch an HB or 2B for just the majority of the drawing and then a 4B for the dark areas of the drawing.
78229
Bolder pencils, such as a 2B to a 6B, are great for loose, expressive sketching or shading. Bold pencils are going to be very soft, which means they dull fairly quickly, allowing you a lot of line variation in your sketching. They also smudge very well, which is great for certain shading techniques.