A drum kit is another name for a set of drums, so to ask what makes a drum kit is like what makes a set of anything, pans, Golf clubs, its down to the individual to buy what they think is the perfect set for them. A drum kit can be as many drums and accessories as you want, many years ago before the days of affordable imported kits, you would buy a bass drum + pedal, snare drum + stand hi-hats + stand supplied with stool, sticks and brushes. The idea you added extra drums as you learned. These days with affordable starter kits its normally 5 drums with stands and cymbals.
Any drum or drum kit can be used, its the player that makes the difference.
The Tama drum kit
A drum kit that is very germy.
roland usually makes good electric kits
To effectively tune your drum kit using a drum kit tuner, start by placing the tuner on the drum head and striking the drum. Adjust the tension of the drum's lugs until the tuner shows the desired pitch. Repeat this process for each drum in your kit to ensure they are all in tune with each other.
There is no 'best' drum kit. Each brand and type of kit has its individual advantages.
Usually, a fourth tom is not included in the standard kit.
bass drum
There is no set price its what you want in a drum kit, make, size of kit, accessories etc.
You can find cymbals inside a drum kit. The number of cymbals is different in each drum kit, because there are different kinds of music. But all come with a Hi-hat unless it is only a drum kit with only drums.
kit
A drum kit typically includes a bass drum, snare drum, tom-toms, cymbals, and hardware like stands and pedals.