01
What is being paid for
A tooling invoice is often a single number for something that is really several things. Naming them is what makes the rest of the agreement possible.
- Each tool identified individually: part name, drawing number and revision, cavity count
- What the price covers — design, steel, machining, trials, texturing, first-article samples
- How many trial and modification rounds are included, and the cost of a further one
- Whether the amount is a full cost or an amortised contribution recovered through unit price — and if amortised, over how many units, what happens if that volume is never reached, and whether the unit price drops once it is
- Payment stages tied to verifiable events — design sign-off, steel cut, first trial shot, sample approval — rather than to calendar dates
