https://github.com/FictionCraft-Team/FC-Atomic-Space/blob/b31c8e46da9cd5f10f89404e9516bee7188c6f20/scripts/mod/crafttweaker/artisan_items.zs#L230-L242
The DurabilityRepaired should be between 0 and 1.
https://artisan-automation.readthedocs.io/en/latest/upgrades/#tool-repair-upgrades

Thanks, I thought I fixed it, must have overlooked. Will fix