The Exit Order Sequence (EOS) theory discussed by previous LMA students predicts the size of burrs formed during face milling. Other influences are tool geometry, coolant use, and material properties in aluminum silicon alloys and cast iron. Used, worn tools also increase the size of the burr. The effect of speed and feed are also discussed, particularly with regards to cast iron.

Machining dry, without any coolant can be advantageous because of decreased costs associated with the use of coolant and a decrease in possible negative effects on worker health and the environment. Many problems associated with dry machining occur because of elevated temperatures. Because of increased ductility at elevated temperatures, the burrs formed are larger.