Makita XWT01Z 18V LXT Lithium-Ion Cordless Hex High Torque Impact Wrench Kit, 7/16-Inch Engineered for drilling and fastening into treated wood utility poles without rotational torque to help maintain balance Makita-built motor delivers 325 ft.lbs. of Max Torque, with 1,900 RPM and 2,200 IPM for powerful drilling and fastening Convenient Quick-Change 7/16" Hex Chuck allows for faster bit changes Rocker switch for forward/reverse operation Shock absorbent handle protects battery housing for extra durability