Cordless Flat Head Grinder Kit Battery Included Voltage 18.0 V Wheel Dia 5 in 8 000 RPM No Load RPM Cordless Tool Battery Type Li-Ion Series LTX Brushless Motor No Switch Type Paddle Lock-on No Lock-off Yes Tool Length 16 3/8 in Battery Included (2) 28CP79 Speed Type Single Battery Pack Replacement 28CP79 Battery Capacity 5.2 Ah Spindle Thread Size 5/8 In.-11 Tool Weight 5.6 lb Features Reach Angles Tight As 43 Degrees Ultra-M(TM) Technology Intelligent Cordless Platform