Can you wash it water after a cut? How do you get all the hair out of the blades after a cut?

There is a small cleansing brush along with the barber kit for blade cleansing.

Please do NOT immerse the clippers into water or put it under tap as they are NOT waterproof.

Does this barber kit come with a wall charger?

No, wall charger is not available. USB cable *2 are included. It is recommended to use a 5V 1A adapter for charging.

Is the trimmer really sharp? Because I’m gonna use it to do my lines.

Yes, this clippers and trimmer set adopts 440c stainless steel blades, which is pretty sharp.

Is this t blade trimmer zero gap?

As for the t blade trimmer you inquired, the closest shave it could give is 0.1mm, which is perfect for fading, blending & carving.

Besides, it is much safer as it wont hurt your scalp during carving.

Is it normal clippers blade getting a little bit hot after a few minutes continuous hair trimming?

It is normal that the blade temperature will rise a little bit after about 20 minutes continous using.

It is recommended to apply 2 to 3 drop of blade oil before use which could effectively prevent blade from heating.