MISUMI / TECHNICAL BUYING GUIDE 1.1.0
Piercing a hole: define the finished result
Turn a piercing problem into a reviewable component request.
What must leave the press?
Start with the finished part drawing: hole geometry and tolerance, burr direction, surface acceptance, material grade and thickness range. Establish whether the punched-out piece is scrap or the saleable part before selecting a retention feature.
Where does the problem appear?
| Observation | Record before changing the die | Review path |
|---|---|---|
| Scrap rises with the punch | Photographs, lubrication, sheet thickness, clearance definition, vacuum or adhesion symptoms | Scrap-retention limits |
| Insert moves or installation damages the holder | Measured bore and shank limits, temperature, holder material and assembly method | Dimensional fit review |
| Premature edge wear or chipping | Tool material record, alignment, edge condition and cycle history | Example series evidence |
These observations organise an engineering review; they do not diagnose a cause or authorise a replacement.
Request a technical review
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