Tooling: what you're paying for and what you own.

What the money buys

An injection mould is a precision machine in its own right: hardened steel, machined and polished to mirror the negative of your part, engineered for cooling, ejection and thousands of cycles. The tooling quote covers that machining plus the toolmaker's design work — gate placement, cooling channels, parting lines — which is why complex parts cost multiples of simple ones, and why "why so expensive?" has an honest answer. Fixtures, jigs and test rigs are the same story at smaller scale.

Amortisation, done honestly

Tooling is a fixed cost your volume divides. The honest move is dividing by the volume you've ordered, not the volume you're dreaming about — the difference between those two numbers is where landed-cost models quietly lie. Watch for tooling "hidden" in the unit price too: it feels friendlier, but it obscures what you're paying, complicates comparisons, and — critically — muddies who owns the steel.

The ownership clause

Moulds you paid for should be yours: stated in the purchase order or a tooling agreement, with ownership, storage, maintenance responsibility and your right to remove them written plainly. Without that paragraph, changing suppliers can mean paying for the same tool twice — the classic captivity story, and entirely preventable. It's a standing clause on our programs, alongside the NNN protections that stop the tool making anyone else's product.

Spending less on steel, properly

The legitimate ways to shrink the tooling bill are design decisions, not negotiation theatrics: part consolidation, tolerances only as tight as the product needs, family moulds where parts share a tool sensibly, and soft or bridge tooling when volumes are still unproven — cheaper steel that trades cycle life for lower entry cost, a good buy while the market answers back. The wrong way is the suspiciously cheap tool: it shows up later, as flash, drift and rework, spread across every unit you make.