Patent ID: 8439609

Claim:
A cutting tool comprising: a shank; a tool body mounted to the shank; and an insert defining a flank face, a rake face, and a cutting edge between the flank face and rake face; micro-nozzles formed in the tool body, each micro-nozzle having an exit diameter of not more than 0.1 mm, the micro-nozzles aimed at the cutting edge; and a flow passage adapted for communication with a source of cutting fluid for the receipt of a flow of cutting fluid, the flow passage extending through at least a portion of the shank and a portion of the tool body, the flow passage being in close proximity to an insert locating surface to minimize the length-to-diameter ratio of the micro-nozzles, and the flow passage adapted to deliver the flow of cutting fluid to the micro-nozzles; wherein, each micro-nozzle generates a micro-jet of cutting fluid in close proximity to the cutting edge, and wherein each micro-jet extends through the flank face and is directed substantially parallel to the flank face.