A worn carbide drawing die rarely needs replacing: as long as the carbide core is intact and the next larger size fits your drawing schedule, reconditioning delivers a like-new tool at considerably lower cost than buying new. Replacement makes sense when the core is damaged, the next size does not fit the schedule — or a die has been recut so often that it has grown out of the drawing sequence.
Recognising wear: the drawing ring
The dominant wear pattern on a drawing die is ring wear at the wire's first point of contact in the reduction cone. It is treacherous because it feeds itself: the rough wear zone traps abrasive particles and deepens ever faster. Once scoring reaches the bearing, the wire loses size, roundness and surface — that is the latest point to act. Early signs in the process: rising drawing force, dull wire surface, growing size scatter.
The two stages of reconditioning
Re-polishing (no size change):
with early wear, the surface is polished back to a mirror finish — the diameter stays. The cheapest and fastest stage; used regularly, it clearly stretches the intervals between recuts.
Recutting (to the next size):
with drawing rings and scoring, the complete geometry is reground and polished; the bore grows to the next size in the schedule. The die continues there at full performance — like new.
Service details (send in → inspection → regrinding → report): Reconditioning.
The decision checklist
| Criterion | → recondition | → buy new |
|---|---|---|
| Carbide core | intact, no chips/cracks | cracks, chipping, thermal damage |
| Next size | needed in the drawing schedule | does not fit the sequence |
| Wear depth | ring/scoring within limits | core too far consumed |
| Time | standard case | 24-h new delivery needed at a critical size |
| Economics | considerably below new-tool cost | special case — quantified after inspection |
In doubt, incoming inspection decides: we assess every die sent in and report what makes economic sense — re-polishing, recutting or replacement.
Knowledge from 78 years of tool making.
Regrinding as a supply strategy
Planning fixed regrinding cycles does more than cut tooling cost: it makes your die supply robust. A rotating stock — one set in service, one set in regrinding, one on the shelf — decouples production from delivery times. And if things get tight anyway: our blank stock enables new deliveries within 24 hours when necessary.
Request reconditioning — send in your tools, receive inspection and a clear quotation: to the inquiry or +49 2772 5817766.
Request reconditioningFrequently asked questions
How often can a drawing die be reground?
As often as the core is sound and the next size is needed in your schedule. There is no blanket number — incoming inspection decides per die.
What does regrinding cost compared to a new die?
Reconditioning delivers a like-new drawing tool at considerably lower cost than buying new. The exact price follows the incoming inspection.
Is re-polishing worth it before any ring is visible?
Yes — that is exactly when it is cheapest. Regular re-polishing keeps the surface within spec before wear starts feeding itself, and stretches the intervals between recuts.
Can I do die maintenance myself?
Partly: refresh polishing works in-house with diamond suspension and grinding pins — the guide is How to polish drawing dies. Geometry corrections and recuts belong in the die shop.