Tungsten Carbide Friction Drills Drilling holes into metals by using friction only looks pretty cool. Facebook Prev Article Next Article Machinery Checkout these cool gadgets... Related Posts Tourbillon: Testing of a new generation theme park ride Welding by Friction is Amazing Twisted Helical End Drill Reduces Cutting Resistance Homemade Log Splitters The World’s first wind tunnel- amphitheater “Flying Dream”, China Photos Carved On Wood