Electric Impact Screwdriver Electric Impact Screwdriver That comes with a built-in battery, providing a high voltage of 688V, giving a rotating speed of 1150 per minute, allowing the screwdriver to hit. Can be drilled in Many types of materials such as wood, aluminum, steel, ceramic tiles. (This will depend on the suitability of the drill bit. as well) with a maximum torque of 35 N.m.