Thanks for the reply:~
Typical ripoff prices from Volvo dealers for these keys.
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On my '97 V70 the keys are very similar- if you want to reinforce the worn part then it can be done: clean the area as best you can- obtain a short piece of copper tube (brake pipe sizes are good) that fits between the opening.. split the same tube lengthwise and roughen the inner bore.
Fix the above into place with J.B.Weld- and then close the tube as necessary.
The weld will initially slump a little so hold in place with tape whilst it starts to set- once it reaches the putty stage remove the tape & mould into shape.
(Allow it to fully cure)
You should end up with a much stronger key body.. Good Luck.
Bob.
Another option could be this?
https://www.ebay.co.uk/itm/233875435302 If you can get a key blank as pictured-with a removable tab then the original chip could be removed from the key and exchanged etc.
This type of flat bladed key can be cut by some outlets, the key will require the chip to start the car.