Makita XAG11Z 18V LXT Lithium-Ion Brushless Cordless 4-1/2 / 5" Paddle Switch Cut-Off/Angle Grinder, with Electric Brake, Tool Only

Electric brake stops the grinding or cut-off wheel in 2 seconds or less for maximum productivity | Active Feedback-sensing Technology (AFT) turns the motor off if rotation of the wheel is suddenly forced to stop | Automatic Speed Change technology adjusts speed and torque during operation for optimum performance | The BL Brushless Motor eliminates carbon brushes, enabling the BL Motor to run cooler and more efficiently for longer life; delivers 8,500 RPM | Efficient BL Brushless motor is electronically controlled to optimize battery energy use for up to 50% longer run time per charge