Graphite Pencils Art Set Koh-I-Noor Toison
Professional graphite pencils for drawing, sketching and illustrating.
A brand new, unopened, unused, undamaged, genuine Koh I Noor graphite pencil art sets in metal case. In its original retail packaging.
The sets of the first quality graphite pencils with different lead hardness grouped by their main area of use.
Graphic pencils of the highest quality in 20 classes of hardness intended both for artistic drawing up to technical drafting. A traditional product with characteristic black envelope that has been produced without any change for more than fifty years.
Koh-I-Noor Toison black line graphite pencils in two sets: 8B-8H and 8B-2H.
Pencil length: 175 mm
Pencil diameter: 7 mm hexagonal profile
Lead diameter: 2.0 - 2.5 mm
12 pencil art set 8B-8H 1902
pencils in set: 8H, 6H, 4H, 2H, F, HB, B, 2B, 3B, 4B, 6B, 8B
KIN code: 1902 1902012009PL, EAN: 8593539179238
metal case 185mm x 102mm x 11mm, weight: 140 grams
12 pencil art set matt 8B-2H 1912
pencils in set: 2H, H, F, HB, B, 2B, 3B, 4B, 5B, 6B, 7B, 8B
KIN code: 1912 1912012001PL, EAN: 8593539085317
metal case 185mm x 102mm x 11mm, weight: 130 grams
Graphite base products are a very traditional product of Koh-I-Noor Hardtmuth company, with history dating back to 1790.
The combination of basic raw materials – low-sintering soft clays and pure, modified ground graphite powder and its complex homogenisation creates a mixture for the production of 20 gradations of graphite leads, with the scope of 8B to 10H. Soft gradations are marked with the letter B taken from the word “Black” and hard gradations are marked with the letter H, which comes from the word “Hard”. There are two gradations between these two groups marked HB (HardBlack) and F (Fine).
The method of production is the same for all lengths, diameters and shapes of graphite leads. Under moist conditions, the pre-prepared mixture for the required gradation is formed into leads by stretching, which are then dried. The dried leads are burnt at a temperature of almost 1000°C and then impregnated with a mixture of fat, oil and paraffin. Special modifications to some types of lead have the possibility of achieving the aquarelle effect by washing the drawing with water. The final stage of the operation is cutting, sanding, pointing, painting and in some cases leads are marked according to the specific type of product.
The produced leads are either used independently or inserted into the appropriate type of versatile holder. The most common form is inserting the leads into wood in the form of pencils with varying types of profiles and shapes.
The mutual denominator and characteristic of these products is the high quality application of the lead on the selected type of paper, with its typical metal sparkle, caused by the basic raw material – graphite. The mineralogical essence of graphite, i.e its lamellar shape, brings an easy way of creating a soft, flowing application, which is most notable with soft gradations B to 8B.
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KOH-I-NOOR HARDTMUTH is one of the world leaders in the production and distribution of first-rate stationery for artists, schools and offices.
The company was founded by Josef Hardtmuth in 1790 in Vienna; however, the production of graphite leads was relocated to České Budějovice in 1848. In the course of time, the KOH-I-NOOR pencils managed to achieve great success at a number of world exhibitions. The products were awarded in many world exhibitions, to name a few, 1855 in New York, 1856, 1900 and 1925 in Paris, 1862 in London, 1882 in Vienna and 1905 in Milan.