Overkill released The Grinding Wheel to the masses earlier this month, and they’ve been performing some of that amazing new material on their current run with Nile. Luckily for those of us who haven’t seen this tour yet, there is now fan footage of the new tracks online. Watch the legends perform ‘Mean, Green, Killing Machine’, ‘Goddamn Trouble’ and ‘Our Finest Hour’ below, and if you haven’t yet, pick up The Grinding Wheel today!