In pencil terms, the UK equivalent of the US #2 grade pencil, a highly versatile medium pencil. Not being an artist, this is about the only grade of pencil I use. Easy to rub out mistakes too...

In the UK pencil hierarchy, the 'H' stands for 'Hard' (9H being the hardest and lightest in colour), the 'B' stands for 'Black', (6B being the softest and blackest).