Super abrasive leads are used as and pencil and allow to create light to medium grays (to be used preferably on well polished plates). Conversely, they allow you to scrape like a scraper to erase existing elements. Available in grit 80 to 1200. Lead length approximately 50mm (half samples), gradually wear out with use.
The rubberized abrasives are more flexible and soften the gradations. Unlike abrasive leads, is not a substitute for the scraper. Diameter 2mm and length 22mm. 3 grits available. (The larger grain is not available in this size, prefer 3mm or 6mm)
In the proposed handles, you can also use nano scrapers (blade 0.7mm x 5mm), micro cutters, as well as silver tips (drawing on prepared paper)