US Patent 11571759 Cutting tool with directed fluid flow to facilitate chip evacuation

A cutting tool, such as a reamer, includes a rear machine connection member, a center tube, a front cutting ring, and a rear cutting ring. The front cutting ring includes a sleeve member and one or more cutting head assemblies. Each cutting head assembly includes at least one support arm extending radially outwardly from a rotational axis, RA, of the cutting tool, and a cutting head supported by the at least one support arm. The at least one support arm of the cutting head assembly defines a fluid dynamic structure for directing fluid flow in a desired direction to facilitate chip evacuation during a cutting operation. The fluid dynamic structure can be an airfoil, a turbine blade, or similar structure that produces a directed fluid flow.