Installing sockets, lamps, etc. at home requires drilling. At this time, a drilling tool is needed, usually an electric drill or an electric hammer. Many people start to struggle whether to buy an electric drill or an electric hammer. ? This article will answer it.
Actually, an electric hammer is also a kind of electric drill. Electric drills can be divided into electric hand drills, impact drills and rotary hammers. 
Hand drills are rotary only and are especially suitable for drilling holes in low force materials such as cork, brick, tile, etc.
The impact drill is based on rotation and impact. It can be adjusted in two ways: a conventional hand drill and an impact drill. It can be used for metal or reinforced concrete, but effect is not very good.
Hammers are mainly used for drilling holes in concrete, floors, brick walls and stone. Instead of conventional electric drills and electric picks, you can use a multifunctional electric hammer, adjusted to desired position and equipped with a suitable drill, which combines functions of a screwdriver, an electric drill and an electric hammer.
From a functional point of view, there should be more electric hammers than impact drills, than hand-held electric drills, but, accordingly, more functions, higher price.
So, what to buy at home, we first of all have to look at our needs, what kind of material we need to drill, soft materials are played with electric drills or impact drills, and electric hammers are used to drill concrete walls.
Second, pay attention to frequency of use. Nowadays, a lot of finishing work is done by professional staff. If we buy a multi-functional electric hammer for only one or two uses, and then sprinkle it with dust, it is not very cost-effective.
Electric rotary hammers are more professional and more expensive; for home use, most prefer impact drills.