Large roughing bit question

Wondering if anyone here has used a large diameter bit (1" or 3/4") to rough out material. I’m wanting to make a very large (28x28) tray and a 1/4" bit is going to take forever. The material is hardwood. Using the makita router.

Let me know if you have any suggestions! Willing to purchase a nice bit, as I’m planning on doing this regularly.


I have used my surfacing bit to remove large amounts of material and my Makita handled it just fine. Do a chipload calculation to be sure you are setting feeds and speeds appropriately and go to town.

A word to the wise…


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hah, thanks! any good resources on how to calculate the chipload?

I don’t have a specific one that I prefer. There are a few different ones that have been mentioned on the forum though.

Depending on your CAM software, it may be built in and you’d just need to cross-reference with your bit manufacturer.

ok thanks! I’ll look into it. I really appreciate the responses!

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Chip Load = Feed Rate (inches per minute) / (RPM x number of flutes).

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