Latest Change on 2013/05/01, 05:22:01
updated description with links.
These brushes are great for sculpting both hard and soft surfaces, for quickly refining sharp edges and blending planes together depending on the pressure you use. The brushes are called Trim Scrape and Trim Fill.
For more about these brushes see this post on my site: http://bensimonds.com/2013/05/01/smarter-scrape-brush/
You can also see this video on vimeo for how they work: