Cutting Parameters
Optimal Spindle Speed
0 RPM
Feed Rate (in/min)
0
Recommended Stepdown (in)
0
Router Dial Setting
Closest Dial Setting
N/A
End Mill Selection Guide
Upcut Bits
Flutes spiral upwards. They pull chips up and out of the cut.
Use for:
• Fast material removal (roughing).
• Cutting plastics (helps prevent melting).
• When chip evacuation is critical.
Result: Clean bottom edge, but may cause splintering on the top surface of woods.
Downcut Bits
Flutes spiral downwards. They push chips down into the cut.
Use for:
• Laminated materials and veneers.
• When a clean, sharp top surface is essential.
• Shallow cuts and finishing passes.
Result: Clean top edge, but may cause a rougher bottom edge. Poor chip evacuation.
Compression Bits
A hybrid design with upcut flutes at the tip and downcut flutes at the shank.
Use for:
• Plywood, MDF, and composites.
• Cutting materials where both top and bottom surface quality matters.
• Must be used for through-cuts.
Result: Clean top and bottom edges simultaneously.
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