Clever system, the way they use Sintered Carbide Lathe tools for the "Soil Engagement" end of things.
For whatever it's worth they'll be a LOT cheaper out of a Machine tool catalog, should you ever need to replace one,.....than from DR.
GTC
Member, Clan of the Border Rats -- “Sometimes I wonder whether the world is being run by smart people who are putting us on or by imbeciles who really mean it.”- Mark Twain