That is a drill bit designed to remove partial drill bits that have broken in a hole
When you operate an electric drill, the motor inside converts electrical energy into kinetic energy to rotate the drill bit. This kinetic energy is transferred to the drill bit, allowing it to drill holes into the material.
Use a brand-new bit for metal mounted on a hand drill (not electric). Slowly rotate the bit in the lead, which is a "soft" metal.
You press the holding ring toward the body of the drill and slightly twist and pull the bit away from the chuck.
In an electric drill, electrical energy from the power source is converted into mechanical energy to rotate the drill bit. This conversion is achieved through the interaction of the electric motor within the drill, which transforms the electrical energy into rotational motion.
An electric drill has a small electric motor inside, driving a series of gears. The power from the gears turn a chuck, which holds the bit placed into it thereby drilling a hole.
Because the spinning motion produces friction which causes it to heat up!
An SDS hammer drill is an electric drill that hammers the drill bit in and out slightly as it drills with it. This type of drill is mainly used to make holes in concrete or masonry, and is able to do so easier than a regular drill and bit are.
An electric drill transfers electrical energy from the power source (e.g., battery or outlet) into mechanical energy, which is used to rotate the drill bit and perform work on a material.
If you have the drill in your hand with the chuck away from you, if the rotation goes clockwise it is going forward and if it is counterclockwise it is going in reverse. When you use the drill you usually go forward. To remove the drill bit look for the reverse lever and once it is going counterclockwise place your hand on the front part of the chuck and the drill bit should be released.
To remove a nail after the head breaks off simply drill through the nail with an equal sized drill bit.
The rotating action of the drill bit makes the hole.