Feeds and Speeds for Core Box CNC

I am machining MDF with 2" diameter  core box bit 45948-CNC and need to know the recommended chip load so that I can figure my feed rate. I see from the catalog that the Max rpm is 18,000, but the bit has 27,500 max rpm printed on it. Which spindle speed should I use?

Thank you, 


James C.

Our Expert

Thank you for the inquiry.


The max rpm is what’s written on the shank, 27,000

 

Cutting MDF, run the 2” dia, 2 flute bit at:

 

16,000 rpm  

 

Chip load per tooth 0.002”

 

60 inches per minute.

 

Step down, ¼” per pass.

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