First Shot Samples Polished before the Buyer Ever Sees Them
Doctored T1 samples hide draft and thermal flaws through hand polishing; enforce raw steel T0 audits with continuous cavity telemetry before sign-off.
Tooling Milestone Retention Payments
Meaning
A commercial payment structure releases contract funds to a mold maker only upon the successful completion of specific stages in the tool build and qualification process. This procurement practice, known as tooling milestone retention payments, governs risk management by keeping a portion of the mold price withheld until the tool produces parts that meet dimensional specifications. The framework applies to high-value injection molding programs and is not used for simple off-the-shelf auxiliary equipment purchases.
Capital Protection
Splitting the tooling payment across multiple phases prevents the buyer from paying the full tool cost before verifying the output. Tooling milestone retention payments ensure that the mold maker remains financially motivated to resolve any dimensional errors found during testing. This structure reduces the financial risk of tool development.
Milestone Verification
Payments are usually split into three or four stages, such as design approval, steel cutting, first trial run, and final part approval. Release of the final retention payment occurs only after the process capability index reaches the required level. This verification requires the tooling to produce repeatable parts during a continuous run.
Sourcing Execution
Procurement teams use this payment structure to hold suppliers accountable to the project timeline and quality goals. Delay in delivering acceptable samples results in delayed payments, which motivates the mold shop to prioritize the program. Clear agreements on these milestones prevent disputes between the OEM and the mold manufacturer.