1.5mm Mill End Cutter Can Anyone Recommend a Supplier

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I have a CNC machine made by Keyline of Italy specfically for cutting car keys to code.
I recently acquired a new jaw that uses a different mill end cutter as per picture.
Whilst calibrating it for the first time I managed to snap the cutter.
Ordered another from my supplier, £64.00 plus VAT, yep £64 plus VAT.
Keyline charge a premium for their cutters, the 2.5mm mill end is around £50 plus, but I managed to source a better cutter from Taiwan for $17.00.
I have scoured the internet for an alternative source of these 1.5mm cutters, someone somewhere must be using a similar cutter.
A number of suppliers have email back, but none have managed to offer a 1.5mm 3 flute on a 6mm shank.
I'd appreciate any pointers as who is likely to stock these, even if its a solid shank, I can grind it flat to fit.

Best Regards