The break-resistant and exceptionally smooth leads for refilling the FC clutch pencils are deep black, blueprintable and can be easily erased. The grades HB to 3B have a lead diameter of 2 mm, 4B to 6B have a lead diameter of 3.15 mm.
- TK 9071 leads for writing, drawing and sketching
- Suitable for TK 9400, TK 9500 and TK 4600 clutch pencils
- Lead diameter 2 mm or 3.15 mm
- Intense black lines
- Easily erasable
- 130 mm long
- 10 leads of one degree of hardness per container