Makita combines power and performance with convenience in this cordless 18V LXT Brushless 4-1/2" Paddle Switch Cut Off/Angle Grinder (XAG06M). It is powered by a Makita brushless motor that enables it to run cooler, longer for improved productivity and tool life. The electronically controlled brushless motor uses Automatic Speed Change technology to match torque and RPM to the changing demands of various applications for optimum performance. This grinder is ideal for grinding, cutting, and sanding in a variety of applications including tile, concrete, pipe, and conduit. The 18V LXT 4.0 Ah Li-ion battery provides 40% more run time and only takes 40 minutes to fully charge for reduced downtime.