You use them for Torx fasteners.
It is a screwdriver with a 6 pointed bit invented and much used in the auto industry.
Torx screwdrivers are usually used in small electronics like computers and phones.
To turn Torx screws.
The different types of screwdriver bits that can be used with a double-ended screwdriver include Phillips, flathead, Torx, and hexagonal bits.
Torx type? use torx screwdriver
Torx type? use torx screwdriver
A star head screwdriver is specifically used to tighten or loosen screws with a star-shaped or "Torx" head.
I believe that's a Torx 25
A Torx screwdriver with a hole in it is designed for use with security screws that have a pin in the center. The hole allows the screwdriver to fit over the pin, providing extra security and preventing tampering or unauthorized removal of the screw.
To change the brake light on a Citroën C3 Picasso, you typically need a Torx screwdriver, specifically a T20 size. This size is used to remove the screws securing the light assembly. Make sure to have the appropriate screwdriver on hand to ensure a smooth replacement process.
I assume this means: "Where can I find a torx screwdriver". Torx is a screw, with a hole looking like a six pointed star, or the star of David. You can find a Torx screwdriver in pretty much any hardware store, or well stocked super markets. They come in different sizes, so make sure you get the right size. They also come in the shape of Alan-keys, or hex-keys.
Your local auto parts store