Re: Neck turning and expansion tools
It will not make the neck brass thinner or thicker at any one place or conical. Think about it. The point of the blade that is closest to the mandrel still needs to rotate around the neck as the mandrel is being pushed into the neck toward the shoulder and it will cut as it goes. It will also cut as the mandrel and cutter is being pulled back toward the case mouth.
What it will do is to make it harder to get a smooth cut and it will make striations around and around the neck for a very uneven finish, depending upon how wide the tip is closest to the mandrel. Sorta like the K & M does with it's narrow cutter.
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