To turn screws.
A screwdriver "bit", or "head" is the part of the screwdriver that fits into the top of the screw. This term is used mainly when talking about screwdrivers with removable Bits
It is a screwdriver with a 6 pointed bit invented and much used in the auto industry.
You will need a small screwdriver to pry the metal tab that is holding it in place. There is a little access notch on the bottom of the windshield mount, put the screwdriver thru there and either twist the screwdriver a little bit or push it up to get the metal tab out of the way- the metal part will slide out towards you.
A crosshead screwdriver or scocket set with a crosshead screw driver bit attached. Screwdrivers routinely used are Pozidriv and Phillips
It is used to fasten and unfasten Robertson screws (square head)
You fit a screwdriver bit in a 1/4 socket.
I believe you may be referring to a Torx bit. These are used a lot in industry, especially in cars and trucks. - Generally in parts where they don't want amateurs interfering.
i would say you are referring to a small tool, which couples a bit (such as a hex bit, or philips screwdriver bit) to a socket (such as a 3/8" drive socket), so the bit coud then be used with a ratcheting handle.
To determine if a drill bit is specifically designed for metal, look for markings or labels on the bit indicating it is suitable for metal drilling. Additionally, consider the material the bit is made of - high-speed steel or cobalt are commonly used for metal drilling. Testing the bit on a small piece of metal can also help determine its suitability for metal drilling.
The screwdriver is used to tighten and loosen screws.
For a crosshead screw the "Phillips" screwdriver is used .
So it doesn't break.