Which is the darkest mechanical pencil lead? What mechanical pencil will be dark like a charcoal? - Quora
Kokuyo Camlin - Experience Darker than the darkest writing with Camlin Supreme 2.0 mm Mechanical pencil. With 4B lead, gives a bold, dark writing. Read more: http://bit.ly/2jVsoG7 | Facebook
![Extra Dark 2B Automatic Pencil Lead Refills, 0.7mm, 15/Tube - Pack of 3 : Amazon.co.uk: Stationery & Office Supplies Extra Dark 2B Automatic Pencil Lead Refills, 0.7mm, 15/Tube - Pack of 3 : Amazon.co.uk: Stationery & Office Supplies](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/71G1EuYt4wL._AC_SL1500_.jpg)