charcoal pencil

tvrdosť ceruziek

Značenie tvrdosti grafitových ceruziek

Európsky systém používa kombináciu písmen H (hard) tvrdý, F (firm) pevný a B (black) mäkký.
Najmäkšia tuha je 9B a najtvrdšia je 9H (čím väčšie číslo - tým väčšia mäkkosť alebo tvrdosť).

Tvrdosť tuhy určuje podiel grafitu a ílu. Čím viac je ílu primiešaného, tým je tuha tvrdšia.

V obchodoch môžete taktiež naraziť na označenie ceruziek 1, 2 a 3, ide o tri najpoužívanejšie tuhy pre školákov.
Ceruzka č. 1 odpovedá tuhe B, ceruzka č. 2 tuhe HB a č. 3 označuje tuhu H.
Jednotka a dvojka sú určené na písanie a kreslenie, trojka je tzv. rysovacou ceruzkou.

Price and labels
Lead Size
Leads Hardness
Producer
(1)
(2)
(12)
Paper spreader MILAN 12.5 mm / set of 12 pcs
Code:2830412

Paper spreader MILAN 12.5 mm / set of 12 pcs

Buy0
10,21 € with VAT
In stock
Recommended
Paper spreader MILAN 6.9 mm / set of 12 pcs
Code:2810412

Paper spreader MILAN 6.9 mm / set of 12 pcs

Buy0
6,06 € with VAT
In stock
Recommended
Paper spreader MILAN 10.5 mm / set of 12 pcs
Code:2820412

Paper spreader MILAN 10.5 mm / set of 12 pcs

Buy0
8,53 € with VAT
In stock
Recommended
BOX 5 STICKS OF NATURAL CHARCOAL 3-5mm
Code:7800

BOX 5 STICKS OF NATURAL CHARCOAL 3-5mm

Buy0
2,81 € with VAT
Na objednávku do 21 dní
Recommended
Paper spreader MILAN 4.6 mm / set of 12 pcs
Code:2800412

Paper spreader MILAN 4.6 mm / set of 12 pcs

Buy0
5,17 € with VAT
In stock
Recommended
Angle natural KOH-I-NOOR round 6-7 mm, set of 6 pcs
Code:0343

Angle natural KOH-I-NOOR round 6-7 mm, set of 6 pcs

Buy0
4,21 € with VAT
In stock
BLISTER 2 BLENDING STOMPS O 6,9mm+10,5mm
Code:BWM94710

BLISTER 2 BLENDING STOMPS O 6,9mm+10,5mm

Buy0
1,62 € with VAT
In stock
Recommended
Artificial angle KOH-I-NOOR 5.6 mm, black, set of 6 pcs
Code:0334

Artificial angle KOH-I-NOOR 5.6 mm, black, set of 6 pcs

Buy0
4,12 € with VAT
In stock
Paper spreader MILAN 18 mm / set of 12 pcs
Code:2840412

Paper spreader MILAN 18 mm / set of 12 pcs

Buy0
17,04 € with VAT
In stock
Recommended
BOX 5 STICKS OF NATURAL CHARCOAL 6-8mm
Code:7802

BOX 5 STICKS OF NATURAL CHARCOAL 6-8mm

Buy0
3,1 € with VAT
In stock
Recommended
Paper spreader MILAN 12.5 mm / 1 pc
Code:2830412-1

Paper spreader MILAN 12.5 mm / 1 pc

Buy0
0,84 € with VAT
In stock
Recommended
Paper spreader MILAN 30 mm / set of 3 pcs
Code:2850403

Paper spreader MILAN 30 mm / set of 3 pcs

Buy0
7,39 € with VAT
In stock
Recommended
BOX 5 STICKS NATURAL CHARCOAL 12-14mm
Code:7806

BOX 5 STICKS NATURAL CHARCOAL 12-14mm

Buy0
3,89 € with VAT
In stock
Recommended
BOX 10 STICKS OF NATURAL CHARCOAL 3-6mm
Code:617024

BOX 10 STICKS OF NATURAL CHARCOAL 3-6mm

Buy0
1,62 € with VAT
In stock
Recommended
BOX 5 STICKS OF NATURAL CHARCOAL 9-11mm
Code:7804

BOX 5 STICKS OF NATURAL CHARCOAL 9-11mm

Buy0
3,37 € with VAT
In stock
Recommended
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