Hitachi WR18DSHLP4 18-Volt Lithium-Ion High Torque Impact Wrench (Tool Only, No Battery) Professional grade motor producing a no-load speed of 1.500 RPM, 2,000 impacts per minute, and an impressive 354 foot-pounds of torque Tumble trigger switch for easily switching from tightening to loosening Battery level indicator to anticipate battery swap downtime Built-in LED light to provide an optimal view of the application area Recommended battery - 335791, Recommended charger - UC18YKSL Covered by Hitachi's Lifetime Lithium Ion tool warranty