Patina Utility Knife | The "Dingo" Knife | G10 HandleIntroducing Koi Patina Knives. Designed for the professional kitchen, we have taken some of our favourite designs and reinforced them with G10 handles and forced patina finish. This improves their wear resistance, allowing the knives to take on some of the brutal challenges a commercial kitchen has in store. The Dingo knife is based on the Australian outback wild dog the Dingo. This was the first knife we gave the industrial treatment too. We wanted