What tooling actually costs, and who ends up owning it

The spool valve carries $0.154 a piece of tooling. At 1,200,000 a year that is $184,800 spent before a single good part ships, and it is the only line on the quote that has to be paid for whether the program runs for 6 years or stops after 8 months.

Every other line is a rate multiplied by a time, the way a machined part build-up assembles them. Tooling is a lump, and how you divide it decides both the price and who carries the risk. Figures come from the worked example on this site, and anything else is illustrative.

Hard tooling against soft, and why it matters to the quote

Hard tooling is built for the part and cannot do anything else. A progressive die, a mould, a dedicated fixture, a form tool ground to a profile. It is expensive, it is fast in production, and it is worthless the day the part is discontinued.

Soft tooling does the same job less efficiently and survives the program. A set of standard vice jaws with a soft insert, a modular fixture, a bolted plate that gets redrilled. It costs less up front and adds cycle time or handling on every piece.

That is a genuine trade rather than a hierarchy. Below a threshold volume the soft route wins because the extra seconds per piece never accumulate to the tooling difference. Above it the hard route wins and keeps winning every year.

The arithmetic is the same crossover calculation that decides whether a casting beats a billet. Divide the tooling difference by the per piece saving and the answer is the volume where the 2 routes meet.

Amortising over year one or over the program

The same tooling bill produces 3 very different piece prices depending on the volume you divide it by. On the spool valve, $184,800 across the first year’s 1,200,000 pieces is $0.154 a piece, which is the figure the quote carries.

Across 3 years it is $0.051. Across the full 6 year program and 7,200,000 pieces it is $0.026. The tooling did not change. The exposure did.

Amortising over year one is conservative and prices you out of competitive work. Amortising over the program is aggressive and leaves you exposed if the program ends early. Neither is wrong, and picking one without saying so is where the argument starts 2 years later.

The volume you divide by is a risk decision.

The annual usage figure on the request is therefore not a detail on the cover sheet. It is the denominator of your largest single line, and a program quoted at 1,200,000 that releases at 700,000 leaves roughly 40 percent of the tooling unrecovered.

Who owns the tooling when the program ends

Read the customer’s terms before you decide, because their form has usually already answered this. Most automotive and aerospace purchase terms say tooling paid for by the customer belongs to the customer, wherever it physically sits.

There are 3 common arrangements. The customer pays for tooling separately and owns it. You pay for it and amortise it into the piece price, keeping ownership. Or you pay, amortise, and ownership transfers once it is fully recovered.

The third is the one worth pushing for and the one that gets skipped. It protects both sides, because the customer is not writing a cheque up front and you are not carrying an asset you cannot recover if they move the work.

If the customer owns the tooling from day 1, expect them to ask for it back eventually. That is not bad faith, it is what ownership means, and a quote that assumed you would run the part for 6 years on tooling somebody else owns was always optimistic.

Their form already decided this.

There is a practical detail that decides whether transfer is even possible. Tooling built to run on your specific machine, with your locating scheme and your bolt pattern, does not simply move. A customer who owns it and asks for it will find it needs rework to run anywhere else, and whether that rework is your problem is another sentence worth having in writing.

Storage and maintenance obligations sit alongside. Holding customer owned tooling for a program that has gone quiet costs floor space and eventually somebody asks why a rack of dies from 2021 is still there.

What happens when the print changes

A revision that touches a toolied feature is a new tooling event and the contract rarely says so. On the spool valve, a change to the bore or the groove profile means a form tool is scrap and a new one is 8 weeks out.

Quote the tooling against a stated revision. Naming Rev C on the quote makes Rev D a commercial conversation rather than an assumption that you absorb the difference, which is what happens by default when nobody wrote the revision down.

The same clause needs to cover tool life. Hard tooling wears, and a die that runs 400,000 pieces on a 7,200,000 piece program needs replacing 17 times. If your amortisation covered building it once, you have quoted the first 5 percent of the tooling the program actually consumes.

That distinction between building the tool and maintaining it is where perishable tooling and hard tooling start to blur, and the quote should say which of the 2 it covers.

Building it once is not owning it.

Engineering changes that do not touch the tool still cost something. A revision that moves a dimension inside existing tool capability needs a program change, a new first article and fresh documentation, which is hours rather than tooling but is still not free. Grouping all revisions into one clause that says tooling changes are chargeable leaves the cheap ones unpriced and the argument unresolved.

What happens when the program ends early

Unrecovered tooling is the supplier’s loss unless the quote said otherwise. A program cancelled after 8 months at an amortisation built on 6 years leaves the balance with you, and the customer has no obligation to make it good if nothing in the agreement created one.

The protection is a minimum volume commitment or a cancellation clause that settles the unamortised balance. Both are normal, both are negotiable, and neither appears unless you raise it at quote time rather than after the letter arrives.

A customer running should-cost analysis will model the tooling amortised over the full program, because that produces the lowest piece price and it is their model. Meeting that number without the volume commitment behind it means accepting their assumption and their risk at the same time.

That is also the line most exposed at the first price-down conversation. Once tooling is recovered, the piece price genuinely can fall, and a supplier who tracked recovery knows exactly when and by how much. A supplier who buried tooling in an overhead percentage has nothing to give and no way to explain why.