This article claims they have designed their own machine. “unlike traditional tunnel boring machines (TBM), Prufrock is custom designed by The Boring Company,

This article claims they have designed their own machine. “unlike traditional tunnel boring machines (TBM), Prufrock is custom designed by The Boring Company, and it is expected to be capable of digging far quicker than its conventional counterparts.” https://www.teslarati.com/elon-musk-boring-company-prufrock-deployed/ https://www.teslarati.com/elon-musk-boring-company-prufrock-...