Makita delivers corded grinding performance without the cord with the 18V LXT® Lithium-Ion Brushless 4-1/2" / 5” Cut-Off/Angle Grinder (tool only, battery and charger sold separately). It's powered by a Makita brushless motor for longer run time, increased power and speed, and longer tool life. For the most demanding applications, Makita's exclusive Automatic Speed Change™ Technology automatically adjusts speed and torque during operation for optimal performance. The XAG04Z is ideal for grinding, cutting and sanding a wide range of materials including tile, concrete, pipe, conduit, and more. The Makita 4-1/2” Diamond Blade, Segmented Turbo, General Purpose, (E-23313) is for use with both Makita and competitor 4-1/2” angle grinders (sold separately). The industrial design along with 50% taller segments deliver longer life, as well as faster and smoother cuts. The E-23313 features an optimum bond matrix that provides a faster, longer lasting, and smoother cutting when cutting concrete, block, brick, and pavers. The blade is carefully tensioned for less vibration and a superior user experience. Makita uses strict quality control measures to ensure superior performance. The blade is made with high quality diamonds allow for both wet and dry cutting for added versatility. The maximum RPM is 13,000.