You've seen the job postings: "Drilling and Boring Machine Tool Setter — entry level welcome." But what does that actually mean at 7 AM on a Tuesday? This guide answers that with specific, ground-level detail — the machines you'll run, the measurements you'll check, the noise, the pace, the parts that weigh 50 pounds, and the parts that weigh 0.1 ounces. You'll learn the difference between setting up a job and babysitting a machine, and which one you'll actually do in your first year.