Reamer | Wear Suggestions: Speed too fast Too light of a feed Confirm concentricity of reamer in holder Check coolant flow, location, and concentration
End Mill | Wear Suggestions: Speed too fast Too light of a feed Confirm concentricity of end mill in holder Verify speeds and feeds
Drill | Heavy wear on corners Suggestions: Increase feed rate Check coolant flow and location Confirm concentricity of drill in holder Check part rigidity