The delivered fingers have wider tips. Tooling's dimensional comparison shows they cannot enter the required housing feature at the confirmed grip. We have rejected that arrangement for this task.

Ask whether the confirmed set can actually be supplied, with its complete reference and terms, before treating the demonstrated fingers as an available replacement rather than merely evidence of the original agreement.

Seller confirms the original reference is available and agrees to replace the wrong set. Return and replacement shipping details are still outstanding; neither set has moved yet.

Keep those movements separate in the shortage and return records, and check the actual replacement on arrival; an agreed reference resolves the proposed remedy, not its fulfilment or the later installation checks.