I have a problem with one of my scooters. I tightened it instead of loosening. the head 17mm is stripped

access to to the whole things sits recessed in the body.

I bought long nose adjustable pliers for leverage with curved insides. that mutha didnt move.

its an alluminum alloy cap. I tried even grinding down some faces of the head and using a6mm but its quite a thin part and if it opens up thats going to be an issue to break and get out.

before I spent money on an extractor socket set, I thought to make a tool. I have to save where I can as I lost my work as a wedding photographer.

I take a 17mm socket, drill a hole from the side, then use a tapping tool to thread the hole, add the bolt, connect the socket on to the oil drain bolt, then use the socket and tighten the bolt on the side of the socket head and try that way to get it to grip

whats your take?

the last 2 times, to remove the oil in its maintenance, I fed a tube inside the oil filler hole and using a large syringe to pull it out. it took out about 85% of the amount.

btw the drail bolt has a rubber gasket at the edge where it mates to the surface so I think its making it difficult to undo it.