Supra Key help

[Noz]

What blank code is the Supra key please? I want to make my own. Fedup with waiting for the forever Titanium version that GZA on FB is going to sell.

 

How can I tell what blank it is, without ending up with the part number itself;

 

OEM Toyota 90999-00186

 

I just want information on the key section of the key. Any advice on how I can find a specification for that key? I'll visit my local locksmith tomorrow but thought might be worth a shout on here first.