* To figure out how screw's head. These sizes will correspond with drivers that will only not be able to properly function without the right size. Or they'll blow up if you don't pay attention to the size requirements (sources for this information are still pending).
* As far as variants are concerned, "external" variants are described with a capital E preceding a number.
When TORX Screws Deviate
It's like they become little rebels. Here are some variants you should look for:
* Security TORX driver from being used. These screws have a post in the middle of the screw's head that make the rejection possible. Other prototypes have a "center pin reject" that does pretty much the same thing.
* TORX PLUS is created so that you have more torque without the usual wear. These guys are patented, so you'll have to wait to get your hands on them, or visit specific manufacturers that produce them.
* The TTAP drivers and heads are also patented.
* The external TORX we were talking about earlier are usually used in automobiles.
* In existence, there are also these mysterious triangle-shaped screws and screwdrivers. But they only exist in the Netherlands, so travel at your own risk if you seek to obtain them.
