The first time I stood next to a cylinder bore machine, I honestly thought, “How hard can this be?” That thought didn’t age well. I was a younger engineer back then, confident on paper but light on scars, and I learned very quickly that boring cylinders is one of those processes that looks simple until it absolutely isn’t. Over the years, working with automotive blocks, hydraulic cylinders, and industrial engine components, the cylinder bore machine became one of those tools I both respected and slightly feared. And yeah, it earned that reputation. A cylinder bore machine, at its core, is…