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Material Finish-Top: Poor
Material Finish-Bottom: Excellent

2 flute routers work well with harder materials, providing an excellent finish to the material.

Upcut routers are used when a good bottom finish is desired on the material. Chips flow in an upward direction.

Spiral flute router bits should only be used in automatic feed operations. They’re good for use on all materials.

Endmill points are most often found on 3 and 4 flute routers. They're good for achieving a smooth finish on a flat bottom surface, and are commonly used in the plastic routing industry.