Thanks to their powerful and durable motor and pin-less rocking dog hammer, the Fuji FW-330 1″ impact wrenches are the ideal bolting solutions for heavy duty production and maintenance applications The series powered by a powerful reverse bias motor to deliver best in class torque of 2600 Nm (1930 ft.lbs). They also feature an oil bath pin-less rocking dog clutch and a 4 speed regulator for better control , outside or inside trigger options as well as a dual socket retainer for maximum tool versatility.