The proper bit for the job...

There are many types of drill bits available on the market, and using the right one not only make the job easier, but it will prevent damage to the item you are building or repairing.

There are the following types of bits:
>wood drill bit
>metal drill bit
>carbide tip drill bit
>glass/ceramic/plexiglass drill bit
>masonry drill bit

There are others but these are the most common. They come in all sizes and depending on how much you want to spend, the quality ranges from bad to excellent. The smaller the drill bit the better quality you should get since they can break easily if they are of cheap metal. Avoid dollar store drill bits.

Each package will indicate the types of materials it can be used on.

When drilling a hole to use a screw, use a drill one size smaller than the screw to avoid making to large of a hole. Always use the correct bit and don't force the drill, let the drill make the hole by applying just the right amount of pressure don't force the drill since you will burn out the drill and cause the drill bit to become dull or even worse you can split the wood, glass or ceramic and ruining the job. Take your time and you will be pleased with the result.