Which type of cutter is flat with cutting teeth surrounding the tool?

Which type of cutter is flat with cutting teeth surrounding the tool?

• A. Face mill
• B. End mill
• C. Chamfer mill
• D. Ball nose

Answer: (A)

Cutter geometry and how the teeth are arranged determine its primary use. A flat cutter with a broad, flat face and cutting teeth around the outside is a face mill. This design lets it machine large flat surfaces quickly by shearing material across the face as it moves, with multiple inserts sharing the cutting load for high material removal rates. End mills cut with edges along the tip and often along the sides, focusing cutting action at the end rather than a broad flat face. Chamfer mills are shaped to produce beveled edges, and ball nose cutters have a rounded end for contoured surfaces, not a flat face with surrounding teeth.

Cutter geometry and how the teeth are arranged determine its primary use. A flat cutter with a broad, flat face and cutting teeth around the outside is a face mill. This design lets it machine large flat surfaces quickly by shearing material across the face as it moves, with multiple inserts sharing the cutting load for high material removal rates. End mills cut with edges along the tip and often along the sides, focusing cutting action at the end rather than a broad flat face. Chamfer mills are shaped to produce beveled edges, and ball nose cutters have a rounded end for contoured surfaces, not a flat face with surrounding teeth.