CRAFTSMAN CMCF810C1 V20 20-volt Max Variable Speed Brushless Cordless Impact Driver (1-Battery Included)V20 Cordless Brushless 1/4-in Impact Driver (1 Battery) highlights a brushless motor giving the user up to 30% more run time increasing the torque and speed allowing for added ease while driving large fasteners.The Impact Driver is built with the user in mind allowing easy bit changes and providing maximum control during application.HIGH PERFORMANCE: Brushless motors provide up to 30% more runtime and delivers 1,500 in-lbs of torqueQUICK FASTENING: Max 2,800 RPMs and 3,500 IPMsQUICK AND EASY: Quickly release chuck for easy one-handed bit changesCommon applications include fastening screws, lag bolts, and large fastenersIncludes (1) CMCF810 Brushless Impact Driver; (1) V20 20V MAX 1.5Ah Lithium Ion Battery; (1) V20 20V MAX Lithium Ion Charger; (1) Storage BagFastening 3-in deck screws into pressure treated 4-in x 4-in with 1.5Ah battery versus CMCF800 with 1.5Ah battery20V MAX battery, maximum initial battery voltage (measured without a workload) is 20 volts, nominal voltage is 18Click here for more Impact Driver on Our WebsiteSee review off CRAFTSMAN CMCF810C1 on Youtube