Hi guys: For basic info: wikipedia: mill cutting : conventional cutting and climb cutting, there's a graph showing how a mill cutting cuts. Yesterday in the shop my instructor taught me that climb cutting gives better surface finish than conventional cutting, yet it requires more load(torque). But I have yet to understand the physics behind it. Wikipedia page's explanation is not that satisfying either, there's nothing that it says about climb cutting I cannot say the same about convention cutting. On the page it says that in conventional cutting is slides across the surface of the part hence dulling the tool, but if I understand this correctly when you are cutting, the tip of your tool is always sliding across the new surface you are creating as you are cutting, so I don't see how climb cutting is better than conventional to be honest. What am I not seeing?