The WR18DL impact wrench produces an incredible 1950-Inch-pounds of turning and tightening torque. It comes with two high-capacity 3.0Ah HXP Lithium Ion batteries for 3-times the life at half the weight of NiCd and NiMH batteries. Hitachi's unique two-step speed switch located on the side of the handle that gives the user the ability to select power mode (0-2,600 rpm), for full speed applications or save mode (0-2,000 rpm), for more control and less power when the application requires. The ½ square chuck on the impact wrench easily accepts all ½ sockets for convenience and flexibility. Other features include an externally accessible carbon brush for quick and easy maintenance, replaceable armature, 2-piece magnet motor and a 5-position belt hook with integrated LED job light for convenience. Compact in length at only 6.58-Inches and lightweight at 3.5-pounds, the Lithium Ion impact wrench from Hitachi handles like a 12-volt tool, while offering the power and performance of an 18-volt . The WR18DL is covered by Hitachi's industry leading 5-year warranty. Batteries are warranted to the original purchaser for a period of ninety (90) days from the original purchase date.