Using the Fusion 360 Bore operation to machine a recessed chamfer. Using the tool_fluteLength expression to offset the starting height to avoid crashing into the shoulder! Fusion Expressions: autode.sk/2oQV9Gh Download Fusion CAD (Patreon): bit.ly/2ojjt0h Support NYC CNC: bit.ly/NYCpatreon Download Fusion360: autode.sk/2ezP8oQ Music copyrighted by John Saunders