Designed for heavy duty, continuous tightening 1/4 Inch hex driving shank Machine screw capacity M4 to M8, standard bolt M5 to M16, high strength bolt M5 to M14 and coarse thread screw 22 to 125mm Power source type: battery Powered Voltage: 40.0 Package Weight: 1.18 kilograms Package Dimensions: 9.4 L x 20.8 H x 15.2 W (centimeters) 1/4″ hex driving shank, Weight: 2.20462262 pounds, Manufacturer: Makita