Drilling & Hole Making: the route, the tolerances it holds, materials and design tips, with an indicative cost. One of 56 processes in the free finder.
MachiningFamily
+/-0.05mmTypical tol.
5Route steps
16Parts in finder
Drilling and deep-hole drilling cut round holes with a rotating drill, with gun drilling holding straightness over long lengths.
At a glance
When to use it, and when not
Best for
Holes of all kinds, and long straight bores like gun barrels and hydraulic cylinders.
Watch for
Hole geometry only; deep holes need special tooling and chip control.
Step by step
The typical route
Raw material to finished part. Steps vary with material, volume and tolerance; this is the free route from the finder.
Fixture
Locate and clamp the part.
Tooling Fixture Tolerance - Lead -
Drill
Drill the hole pattern.
Tooling Drill Tolerance - Lead -
Ream/tap
Ream to tolerance or tap threads.
Tooling - Tolerance - Lead -
Deburr
Deburr both sides.
Tooling - Tolerance - Lead -
Inspect
Check position and size.
Tooling - Tolerance - Lead -
Precision
Tolerances it can hold
TYPICAL TOLERANCE IT CAN HOLD
Where this process typically lands. Tighter is possible with extra operations like grinding, at higher cost.
Materials
Materials it suits
Grade
Why it suits this
(matches the parent part)
n/a
Design
Design tips
A few general pointers for Drilling & Hole Making. The full, part-specific DFM list is in the dossier.
Very deep holes (>5x dia).Allow peck/gun-drill or relax.
Drilled hole toleranced like a reamed one.Call out ream/bore only where needed.
Cost
What it costs
Usually a secondary op costed into the part; deep, tight or angled holes add time.
PER-PART COST vs VOLUME
Per-part cost drops as volume spreads tooling and setup over more parts. The exact figures for your part at your volume, in your currency, are in the dossier.
MODEL EST.
$2.4 to 4.1per part at 1 off
A rough ballpark only. The dossier gives should-cost at your exact volume and currency, with the full breakdown.
GET THE FULL DOSSIER
Everything you need to quote and source it
The free route above is yours. To actually put a number on this process and buy it well:
Should-cost at your exact volume in 12 currencies, with the material, processing, tooling and overhead breakdown
Who to source from, typical MOQ and lead time, and the exact RFQ checklist to send
A quote checker that tells you if a supplier quote is fair, and the red flags to watch
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Drilling and deep-hole drilling cut round holes with a rotating drill, with gun drilling holding straightness over long lengths. The typical route is: Fixture; Drill; Ream/tap; Deburr; Inspect. Holes of all kinds, and long straight bores like gun barrels and hydraulic cylinders.
What does Drilling & Hole Making cost per part?
It depends on size, tolerance and volume. As a rough ballpark it starts around $2.4 to 4.1 per part at low volume and falls with quantity. The dossier gives should-cost at your exact volume and currency. Model estimates, not quotes.
What tolerance can Drilling & Hole Making hold?
Typically about +/-0.05 mm, tighter with extra finishing operations at higher cost.
What materials suit Drilling & Hole Making?
Common choices are (matches the parent part) (n/a).
See the exact route and should-cost for your part
The free finder maps your part to its process and full route. Pro adds should-cost at your volume, sourcing and an RFQ draft.
