How to cut a 3.2mm hole with a 3.175mm endmill?

Is there any way of doing this?? it just deletes it when creating the code.

Use the crosshair symbol in Easel, it create a pecking motion vs ramping which need a radius the dimension you have entered wont allow.

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So do you just have to line it up manually? that’s really not good enough. I’ll try get a 3mm bit, I guess that’ll work much better.

No, far from it - use the crosshair symbol, assign a X/Y coordinate to its center point and insert your 3.175mm drill bit.
You can space them along a grid etc to make several indentical holes.

The hole will be centered at your X/Y coordinate.