FeaturesElectric brake stops the grinding or cut-off wheel in 2 seconds or less for maximum productivityActive Feedback-sensing Technology (AFT庐) turns the motor off if rotation of the wheel is suddenly forced to stopAutomatic Speed Change鈩?technology adjusts speed and torque during operation for optimum performanceThe BL鈩?Brushless Motor eliminates carbon brushes, enabling the BL鈩?Motor to run cooler and more efficiently for longer life; delivers 8,500 RPMEfficient BL鈩?Brushless motor is electronically controlled to optimize battery energy use for up to 50% longer run time per chargeThe electronically-controlled BL鈩?Brushless Motor efficiently uses energy to match torque and RPM to the changing demands of the applicationCompact and ergonomic design at only 14-1/4" longWeighs only 5.8 lbs. with battery for reduced operator fatigueRubberized soft grip provides increased comfort on the job3-stage L.E.D. gauge indicates battery charge level