Toolroom Machinists and Machinists both operate machine tools and require similar certifications like CNC operator licenses. Toolroom Machinists typically work in dedicated machine shops, focusing on precision tooling, fixtures, and custom parts, often in manufacturing or aerospace industries. Machinists may work in broader manufacturing environments, producing a variety of parts on production lines. Both roles demand technical skills, but Toolroom Machinists usually handle more complex, detailed work with a focus on tool and die making.