Koh-I-Noor have been producing quality art materials for more than two centuries, patenting the concept of the graphite/clay pencil core in 1802. They soon followed this with the innovation of grading the graphite hardness from 8B to 10H, as we recognise it today.
In recent decades the Czech brand Koh-I-Noor has been known for good value, quality art materials.
These professional graphite pencils are available in a choice of two sets of 12.
ART set 8B - 7B - 6B - 5B - 4B - 3B - 2B - B - HB - F - H - 2H
GRAPHIC set 5B - 4B - 3B - 2B - B - HB - F - H - 2H - 3H - 4H - 5H