M18 FUEL™ 4-1/2" / 5" GRINDER PADDLE SWITCH, NO-LOCK (TOOL ONLY) (D-1, SF) POWERSTATE™ 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 applications. REDLINK PLUS Intelligence: The most advanced system of electronics in the industry, enabling communication between batteries and tools, allowing for unmatched levels of performance, protection, and compatibility. REDLITHIUM HIGH OUTPUT Battery Pack (Not Included): Provides 50% more power and runs 50% cooler versus standard REDLITHIUM Battery. Superior pack construction, electronics, and performance deliver more work per charge and more work over pack lifespan than any battery on the market. RAPIDSTOP™ Brake stops most wheels in less than 2 seconds. Electronic Clutch for Kickback Protection Paddle Switch Design for Increased Comfort and ease of use when Operating in Various Positions Overload Protection to Maximize Motor Life Tool-Free Guard Adjustment for faster guard installations and adjustments Anti-Vibration Side Handle for Increased User Comfort and Safety Tool-Free Accessory Change with Integrated FIXTEC Technology 5/8"-11 Spindle for Use with Common Grinding Accessories Compatible with all M18 batteries