Makita delivers corded grinding performance without the cord with the 18V LXT Lithium-Ion Brushless cordless 4-1/2 in. Cut-Off/Angle Grinder with paddle switch (model XAG06M). 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 18V LXT 4.0 Ah battery provides 35% more run time per charge than the BL1830 (3.0 Ah) battery, yet it charges in only 40 minutes for less downtime and increased productivity. The XAG06M is ideal for grinding, cutting and sanding a wide range of materials including tile, concrete, pipe, conduit, and more. Its part of Makita's expanding 18V Lithium-Ion series, the worlds largest cordless tool line-up powered by an 18V Lithium-Ion slide-style battery. Makita 18V Lithium-Ion batteries have the fastest charge times in their categories, so they spend more time working and less time sitting on the charger. For improved tool performance and extended battery life, Makita created Star Protection Computer Controls. STAR Protection is communication technology that allows the star Protection-equipped tool and battery to exchange data in real time and monitor conditions during use to protect against overloading, over-discharging and overheating. For increased versatility, the tool can also be powered by Makita 18V LXT and compact Lithium-Ion batteries with the star symbol on the battery indicating STAR Protection inside. The 18V LXT 4.0 Ah battery (BL1840) is compatible only with STAR Protection tools, indicated by the star symbol and/or yellow battery receiver under the tool.