Very light marking, pretty good strength (although I'm used to a 0.7mm for most
applications, so it takes some getting used to using a lighter touch to avoid
breaking lead/drilling through the paper/poking through my fingertips . . .)
This lead is great for fine light lines that are easy to erase. I use this when
making my rough draft of a mind map. Kind of like how an artist lightly
sketches out a drawing. I treat my nursing school notes like art work.