Tooling Ownership Agreement: How to Make Sure You Can Take Your Tooling With You
General information, not legal advice. Tooling law varies by state and country. Have a qualified lawyer review tooling terms, especially if the tooling will sit abroad.
Paying for tooling and owning it are two different things. The mold, fixture, or test rig sits in the manufacturer's building. If ownership, release, and maintenance are not written down, you may find out what "ours" means only when you try to leave.
That is why tooling ownership is a knockout requirement, not a nice-to-have, in the method our playbook teaches. A manufacturer that will not put it in writing before you pay is telling you how the exit will go.
This guide covers what to put in a tooling ownership agreement, using two fictional examples: Northline, which paid $9,000 in NRE for CNC fixtures and hinge tooling at a Mexican manufacturer, and a molded-part scenario for anyone with plastic or silicone parts.
What counts as tooling
"Tooling" usually means any equipment made or bought specifically for your product:
- Injection molds and silicone molds
- CNC fixtures, jigs, and custom cutters
- Assembly fixtures (Northline's hinge preload fixture and pad placement fixture)
- Test rigs and gauges built for your product
- Printing plates, dies, and custom filler parts (Rainwell's custom filler pucks for its airless pump)
It is often paid through NRE (non-recurring engineering), a one-time charge. Ask for NRE as separate lines so you know what you are buying. A lump sum hides it. Northline's lowest-price candidate quoted $18,500 NRE on one line, and answered the ownership question with "we can discuss" after two requests. That was an answer.
The seven terms that matter
| Term | What good looks like | Northline example |
|---|---|---|
| Ownership on payment | You own tooling and fixtures once fully paid, stated in the agreement | Northline owns all fixtures on full NRE payment |
| Identification | Each tool tagged "Property of [you]," photographed, listed with tool number and location | Tagged, photographed, list kept in the tooling register |
| Bailment acknowledgment | The manufacturer signs that it holds your property, it does not own it | Acknowledged by Arvena in writing |
| Release on demand | Shipped to you or your nominee within a set number of business days of written request, including tooling at subcontractors | 15 business days, including tooling at the hinge subcontractor |
| Use restriction | Your tooling is used only for your products | Stated in the MSA |
| Maintenance and insurance | Who maintains, repairs, and insures it against fire and loss | Agreed in the tooling schedule |
| No lien for disputed invoices | The manufacturer cannot hold tooling hostage over a disputed bill | Stated in the tooling schedule |
Two protections worth raising with your lawyer. First, a precautionary UCC-1 filing and a waiver from the manufacturer's lender can help show the tooling is yours if the manufacturer runs into financial trouble. Second, some US states give molders a statutory lien for unpaid tooling invoices. Ask counsel whether it applies to you.
If you have molded parts
For many products the mold is the largest single NRE payment and the hardest asset to move. The terms above apply, plus these:
Know what you are buying. Mold price with no cavity count, steel type, or shot guarantee is a red flag.
| Aluminum mold | Pre-hardened steel (such as P20) | Hardened steel (such as H13) | |
|---|---|---|---|
| Typical use | Prototypes, bridge tooling, low volume | Most production | High volume, abrasive resins, clear parts |
| Typical life | Thousands to tens of thousands of shots | Hundreds of thousands | 500,000 to over 1 million |
| Illustrative cost, simple single-cavity part | $3,000 to $15,000 | $10,000 to $40,000 | $25,000 to $60,000 |
Costs are illustrative. Size, complexity, cavities, side actions, and the toolmaker's country move them a lot.
Get a shot guarantee in writing. For example: "The molder maintains and repairs the mold at its cost until 300,000 shots." Ask for a shot counter and the count on each quarterly report.
Pay on milestones, not up front. An illustrative schedule: 40 percent at mold kickoff, 30 percent at first formal samples (T1), 30 percent at approval of final textured samples. Keep the last payment until approved parts match the drawing. Full payment before T1 samples is a red flag.
Get a tooling ownership letter. It names the mold number, cavities, guaranteed shots, location, and owner, with a photo of a "Property of" nameplate on the mold. If the molder used a separate toolmaker, the letter should cover that chain too.
Protect idle molds. Some molders clear out molds idle for two or three years. Require your written consent before any disposal.
Tooling abroad
When tooling sits in another country, recovery depends on local law, not your US contract alone. Two things to raise with counsel and a customs broker:
- Enforceability. For China, an NNN agreement and a manufacturing agreement drafted by China-qualified counsel, with Chinese as the controlling text, are commonly recommended. Northline chose a Mexican manufacturer and still paid for one hour of local counsel on tooling release and whether a Spanish version was needed.
- Duty. As of September 2026, money paid to an overseas supplier for tooling, and tooling you send to them free of charge (an "assist"), can commonly be added to the customs value of the goods. If an $18,500 NRE were dutiable at 25 percent, that adds $4,625, or about $0.39 per unit at 12,000 units. Confirm with a licensed customs broker.
Getting tooling back when you leave
Tooling terms sit inside a wider agreement stack. See our contract manufacturing agreement checklist for the rest.
Even a good relationship ends sometimes. When it does, you want the transfer-out to be boring. The agreement should give you:
- Tooling released within the stated window, with last-shot samples and maintenance records for molds
- Drawings, programs, test data, and fixture designs you paid for
- Finished goods and work in process at cost, and non-cancellable material bought against your firm forecast
- A set period of technical support at agreed rates
Before you need it, run a short test. Ask the manufacturer to confirm the tooling list, locations, and tag photos once a year. Tooling that cannot be located on paper is hard to recover in practice.
Red flags
- "The mold stays with us, but you can order parts any time." That is not ownership.
- "Tooling is amortized in the price, so it's ours."
- Tooling ownership is "understood" but not written.
- Release terms exclude tooling held at subcontractors.
- A launch date that assumes the first mold samples will pass. Budget two or three correction loops of 1 to 2 weeks each.
Frequently asked questions
Who owns the mold if I paid for it?
Whoever the contract says owns it. Paying creates a strong argument, but without written ownership, identification, and release terms, the manufacturer holding the mold may dispute it. Put ownership in writing before you pay for tooling.
What if tooling cost is built into the unit price?
Then you have not clearly paid for it, and the manufacturer may reasonably claim it. If you want ownership, ask for tooling as a separate line, or agree in writing that ownership transfers after a set number of units.
How fast should a manufacturer release tooling?
A defined number of business days after written request. Northline agreed 15 business days, including tooling at subcontractors. The right number depends on the tooling and location. The important thing is that it is a number.
What is a tooling bailment?
A bailment is a legal arrangement where one party holds another's property. A bailment acknowledgment is the manufacturer's signed statement that it holds your tooling for you and does not own it. Ask your lawyer how it applies where your tooling sits.
Next steps
- Check whether ownership terms are on your pre-contract list with the free manufacturer readiness check.
- See what tooling spread over your volume does to unit cost in the product cost calculator.
- The Contract Manufacturing Playbook includes a Tooling & NRE Agreement Checklist template (blank and filled for Northline) and a chapter on getting tooling released when you change manufacturers.