High quality graphites for automatic pencils clutch. Extremely tough and strong. Saturated black and intense lines. Available with 14 degrees of graphite hardness: 6B 6H. From 6H to 3B are 2 mm in diameter and 4B to 6B are 3,15 mm in diameter.
Suitable for automatic pencils TK 9400, TK 9500 and TK 4600 clutch.
Length of graphite: 130 mm.
Contents: 10 high quality graphite. 
On request