Dual-trigger ensures two handed operationPermanent side handle provides 15 positions for greater controlAutoStop™ kickback control prevents severe kickbackRapidStop™ Brake stops most wheels in less than 1 secondElectronic clutch for kickback protectionVariable speed provides 4 speed settings between 3,500 RPM and 8,500 RPM for greater controlOne-Key™ Compatible: Ability to customize, track and manage tools for increased productivity and investment protectionPowerState™ Brushless Motor: Purposely built for the M18 FUEL™ 4-1/2" / 5" Angle Grinder delivers 8,500 RPM to provide the power to complete the toughest grinding and cutting applicationsRedLink Plus™ intelligence is the most advanced system of electronics in the industry, enabling communication between batteries and tools, allowing for unmatched levels of performance, protection, and compatibilityRedLithium™ High Output™ Battery Pack (Not Included) provides 50% more power and runs 50% cooler versus standard RedLithium™ BatterySuperior pack construction, electronics and performance deliver more work per charge and more work over pack lifespan than any battery on the marketOverload protection maximizes motor lifeAnti-vibration side handle reduces vibration, increasing user comfort during extended useTool free guard provides easy guard adjustment5/8"-11 Spindle for use with common grinding accessoriesCompatible with all M18™ Batteries