How to find a chuck key?

[Noyade]

Hi all.

Looking for a key to suit this Jacobs chuck. Tried one place without success and then looked at Bunnings online a few minutes ago.

It's a 6.5 mm chuck and the Craftright key details talk about fitting a 6mm chuck - but to my eyes the pins on all four sides look to be the same diameter?

I need a pin somewhere around 3 to 3.5mm in diameter by my reckoning.

Thanks.

https://www.bunnings.com.au/craftright-4-in-1-drill-chuck-key_p6330241

[Dave-1]

 @Noyade 

Ohhh yeah its a good day when that happens! 

Ive done the same. Now I keep all the chuck keys in a set spot plus all my super fine drill bits. 

Dave