A method for manufacturing endodontic instruments by milling. A provided metallic (e.g., a nickel-titanium alloy or stainless steel) thread or wire having a longitudinal axis is advanced along its longitudinal axis at a feedrate while contacting at least a portion of the metallic thread or wire with...http://www.google.de/patents/US7322105?utm_source=gb-gplus-sharePatent US7322105 - Methods for manufacturing endodontic instruments by milling
