| Control point | What is clarified | Why it matters |
| Released definition | Part number, drawing/CAD revision, material and finish requirement. | Prevents production from starting from an outdated or incomplete reference. |
| Critical characteristics | Functional dimensions, datums, fits, threads, bores, mounting faces and cosmetic limits. | Focuses inspection effort on the features that affect assembly or use. |
| Acceptance route | Requested inspection records, sample approval needs, labels, packing and delivery instructions. | Aligns evidence and release expectations before the order moves forward. |
| Related product page | Typical buyer risk | Examples of drawing-driven inspection focus |
| CNC Turning Parts | Rotational features may not assemble as intended. | Diameter relationships, bore/OD features, grooves, threads and functional runout requirements. |
| CNC Bushings | A mating shaft or housing fit is unclear. | ID/OD relationship, length, shoulder position, lubrication features and specified fit requirements. |
| CNC Pins | A locating, retaining or pivot feature does not seat correctly. | Diameter, effective length, ends, grooves, cross holes, retention features and burr control. |
| CNC Flanged Components | A sealing or mounting interface fails to match its mating part. | Mounting face, pilot/bore relationship, bolt-hole pattern, flange thickness and interface geometry. |
| CNC Threaded Components | Thread engagement or mating compatibility is not confirmed. | Thread standard, size, pitch, handedness, engagement depth, relief and entry condition. |
| CNC Milling | Datum faces, holes or pockets do not support downstream assembly. | Datum selection, hole position, pocket/slot geometry, flatness and feature relationships. |
| CNC Machined Components | Several parts in a set change independently and no longer share interfaces. | Revision control, shared mating features, BOM identification and component-specific acceptance points. |
For features that drive fit, function or appearance, the agreed checks should be aligned before the project proceeds.