Starting with carpenter and art pencils containing thick leads, Russian artist Salavat Fidai uses an X-ACTO knife to carve miniature renderings of hands, buildings, and various characters from pop culture. The delicate process requires a good understanding of how much pressure the lead can withstand, but even then mistakes are inevitable. http://www.thisiscolossal.com/2015/07/delicate-pencil-lead-carvings-by-salavat-fidai/