“…The comments here are made around these conditions. They are based on results from finite element simulations carried out in response to the discussion in [1], though with a tool of edge radius 10 m (for minimum mesh size reasons), using the bespoke for machining commercial finite element software AdvantEdge-2D, developed from [2], with its option that enables users to include their own material flow stress model. Details are in Appendix A.…”