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 What Is The Best Security Bike Lock? Carbon Fiber VS Steel This Machine Has 44 Million Horsepower This Machine Eats Trees From The Top Down These Gears Are Synched at 4,500 RPM Chinese Blacksmiths Use Massive Five-Story Hammer To Forge A Flange On The Street