End mills are the primary cutting tools used in a vertical mill such as the mini-mills we are concerned with. Like drills, they come in a wide variety of styles and quality levels. The most common ones you will need for getting started are 2-flute and 4-flute end mils. You can buy them individually as needed, or in sets.  

End mills are the primary cutting tools used in a vertical mill such as the mini-mills we are concerned with. Like drills, they come in a wide variety of styles and quality levels. The most common ones you will need for getting started are 2-flute and 4-flute end mils. You can buy them individually as needed, or in sets.