Reader Question
At what point (diameter, tolerance, surface finish, volume, operator experience, material…) should I switch from single-point boring to reaming?
Miller’s Advice
You are starting with the right mindset, but unfortunately, “it depends” is the best answer to that deep question. Each of these constraints comes with arguments for both reaming and boring, and every shop will weigh these constraints with varying degrees of importance. A small prototyping shop may lean toward the flexibility of a boring system, while a high-volume shop may want the “set and forget” benefits of a reamer.
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