When you want to do an auto repair yourself, you will need the right hand tools to get the job done right. All too often you will be tempted to borrow the tools that you need to do the job. Borrowing tools will keep you from building up your own tool collection and will aggravate the person you are borrowing from.
Having an assortment of hand tools in your own toolbox will allow you to do any kind of auto repair yourself. You won't have to waste time finding someone to borrow the tools from. You will be able to open your toolbox and have what you need right in front you when you are ready to tackle an auto repair yourself.
Buying tools that you know you will be using often just makes sense. There is no reason to borrow simple hand tools that you know you should have in your own toolbox. People get tired of you always borrowing their tools and will most likely start to hide when you contact them. Go ahead and get your own tools, especially if you plan on turning a wrench regularly.
If you need a specialty tool that you may never use again, you can usually get those on loan from several of the larger chains of auto parts stores. They keep certain hand tools on hand just for that reason. They know that you will be needing the tool and most times will tell you of it's availability when you order your parts.