end mills purpose,Types and Characteristics of End Mills - Melin ToolFlutes - Spiral cutting edge on the end mill. 2 and 4 flute end mills are the most commonly used. 2-Flute - Allows maximum space for chip ejection. Used for.end mills purpose,End Mill and Cutting Tool ApplicationsTraining - End Mill Applications. Application Considerations End mills are used for producing precision shapes and holes on a Milling or Turning machine.