Spiral bits feeds and speeds

I purchased 3.175 x 45 x 22 2 fluted spiral bits. I snapped 1 already. I used the 102 1/8 bit in my shapeoko pro 5. My question on feeds and speeds. Plunge 8.0 feed rate 40.0 13000 rpm

And our question, What material were you trying to cut, depth of cut, and what kind of cut?

1 Like