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Drilling & Tapping

Hole requirements belong to the finished part.

A cut hole, drilled hole, bore and thread are different procurement features. Diameter, depth, position, tolerance, countersink/counterbore, thread specification and downstream assembly need to be explicit.

HoleDiameter / depth / position
ThreadSpecification + engagement
InspectCritical features measured
Drilling holes in steel plate
Feature Definition

Choose the hole-making route from the drawing.

Small-hole rules and machine limits are not universal across material, thickness, geometry and setup. The drawing requirement controls the review.

Diameter + depthState through/blind condition and finished size rather than only the pilot feature.
PositionIdentify datums and positional tolerance where assembly alignment matters.
ThreadSpecify thread standard, size, depth/engagement and any finish requirement.
InspectionCritical hole/thread features should have an agreed measurement or gauge method.
Request a Quote

Describe the finished hole, not just the cutting method.

Include material, thickness, hole/thread specification, datums, tolerance, quantity and destination.