As title states after the wrench for my cobra hybrid, these seem very few and far between on eBay and not sure if they are universal so no better place than here, thank you in advance
The amp cell wrench is the same as the amp pro and I think its the same as the original RBZ range.
You can also use a regular star torque wrench. Only thing is it does not have the click.
Alternatively go into AG or DG and see if they have any spare. Last AG I was in had a massive box out the back with them all in. Took the guy about 5 minutes to find my new one with my amp cell driver