According to people in this career, the main tasks are...
| Task | Importance |
|---|---|
| Verify conformance of machined work to specifications, using measuring instruments, such as calipers, micrometers, or fixed or telescoping gauges. | 96% |
| Study machining instructions, job orders, or blueprints to determine dimensional or finish specifications, sequences of operations, setups, or tooling requirements. | 94% |
| Move machine controls to lower tools to workpieces and to engage automatic feeds. | 91% |
| Verify that workpiece reference lines are parallel to the axis of table rotation, using dial indicators mounted in spindles. | 89% |
| Establish zero reference points on workpieces, such as at the intersections of two edges or over hole locations. | 89% |
| Change worn cutting tools, using wrenches. | 89% |
| Select and set cutting speeds, feed rates, depths of cuts, and cutting tools, according to machining instructions or knowledge of metal properties. | 88% |
| Position and secure workpieces on tables, using bolts, jigs, clamps, shims, or other holding devices. | 88% |
| Observe drilling or boring machine operations to detect any problems. | 86% |
| Lift workpieces onto work tables either manually or with hoists or direct crane operators to lift and position workpieces. | 85% |
| Turn valves and direct flow of coolants or cutting oil over cutting areas. | 83% |
| Install tools in spindles. | 82% |
| Perform minor assembly, such as fastening parts with nuts, bolts, or screws, using power tools or hand tools. | 78% |
| Operate single- or multiple-spindle drill presses to bore holes so that machining operations can be performed on metal or plastic workpieces. | 78% |
| Lay out reference lines and machining locations on work, using layout tools, and applying knowledge of shop math and layout techniques. | 78% |
| Sharpen cutting tools, using bench grinders. | 73% |
| Operate tracing attachments to duplicate contours from templates or models. | 55% |
