Rotary Broach - Can it really be this simple?

[Aukai]

Is there a chart for hole size for the profile/size you choose to broach, like a hex?

 

[kcoffield]

Is there a chart for hole size for the profile/size you choose to broach, like a hex?

I haven't looked but one of the commercial manufacturers might have some guidelines. I'd just experiment. My hole was the same size as distance across flats, but again, in soft materials, I'm sure one has much more leeway.

Best,
Kelly