12 V MAX Li-ion Cordless motor that delivers superior performance and maximum run time. The right angle attachment is for tight spaces, and it works with all three other adapters. The offset angle attachment delivers precise screwdriving close to edges.  4-Mode Drive Control provides you with unmatched control in various fastening applications Modes 1-3 gives you precision and control for any application. precision and customization to your desired power output, including AUTO SHUT-OFF that applies no more than the torque for hand-tight applications that prevent overtightening when in forward. In reverse, bolt removal mode will slow down the RPM once the bolt is free to prevent bolts from flying around your work area. To change the modes, it is a single-handed operation.