Cordless renovators are multifunctional tools that performs grinding, cutting, hole and cavities forming functions. A Bort renovator (multitool) will replace several tools at once: a grinder, a chisel, and a saw. Due to capacious Li-Ion rechargeable batteries, Bort cordless renovator operate in a mobile and autonomous mode. They can be used anywhere: in a house or apartment, garage, or country house. No need for cords ensures advanced comfort of operation, opportunity to use the multitool when the electricity is off or in non-electrified premises.