The 18V LXT® Battery and Charger Starter Pack (4.0Ah) with bonus X-LOCK Grinder (BL1840BSCX3) is an ideal way to expand current tool and battery count or to start new on the platform. The Battery and Charger Starter Pack features three (3) 18V LXT® 4.0Ah Batteries (BL1840B), one (1) 18V LXT® Charger (DC18SD), one (1) 18V LXT® Brushless 4-1/2” / 5" X-LOCK Angle Grinder, with AFT® (XAG25Z), and one (1) X-LOCK 5" Continuous Rim Diamond Blade (E-07406). The 18V LXT® 4.0Ah Batteries provides up to 35% more run time per charge compared to BL1830, while the 18V LXT® Charger charges an 18V LXT® 4.0Ah battery in 90 minutes giving the user longer run times with less time spent charging. The 18V LXT® Brushless 4-1/2” / 5" X-LOCK Angle Grinder, with AFT® (XAG25Z) gives the user a powerful and versatile grinder with the X-LOCK system for five-times faster blade changes. The X-LOCK 5" Continuous Rim Diamond Blade is engineered with an optimum bond matrix that provides a faster, longer lasting, and smoother cutting diamond blade that is ideal for cutting hard materials including ceramic, granite, porcelain, tile, and stone.