Define the bore and how it will be accepted
A deep-hole request needs more than a depth value. Specify hole diameter, depth, position, entry geometry, material and the relationship to the part datums. If straightness, position or breakout location is critical, define the requirement and measurement method on the drawing.
For the broader machining scope, see CNC machining capabilities. This page focuses on evaluating a deep bore in a specific component.
Details that affect feasibility and inspection
- Hole diameter, depth and access from the selected entry face.
- Material grade and stock condition.
- Position relative to datums and intersecting features.
- Required straightness, finish and permitted deviation.
- How the bore will be measured and recorded.
A general depth-to-diameter ratio is not enough to confirm feasibility. Workholding, geometry, material and access must be reviewed for the actual part. Do not assume a standard drilling route meets a tolerance that is not specified.
Request a drawing-based review
Send the current CAD and drawing revisions, material, quantity and critical bore criteria. Mark which requirements are essential for function and include any required inspection record.
