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The 303 stainless cuts a lot like the 12L14 but doesn't rust so quick, I use it for most parts now.
I didn't have too much trouble machining 304,
But I'm wondering when a follower's use is dictated. Is there a rule of thumb for length, diameter, and material?I've had instances where a long, small diameter part, simply bends in the middle as cutter pressure is applied.