16 - 18 volt batteries, most now come with lithium battieries which
are lighter and have more lasting power, other drills are corded
DETAIL:
An angle grinder, also known as a side grinder, is a handheld power tool used for cutting, grinding and polishing. Angle grinders can be powered by an electric motor, petrol engine or compressed air. The motor drives a geared head at a right-angle on which is mounted an abrasive disc or a thinner cut-off disc, either of which can be replaced when worn. Angle grinders typically have an adjustable guard and a side-handle for two-handed operation.
