SKIL PWRCore 20 4.5 in 20 Volt Sliding Switch Cordless Angle Grinder (Charger Included and 1 Battery) Sustainable Flooring The 1 13 16 in The 1 13 16 in odd even date selection or interval watering sharpening charger Variable Speed No Number of Batteries Included for Tool 1 Side Handle Yes Battery Type Lithium ion (Li ion) Charger Included Yes Warranty (Parts) 5 year limited Base Material Plastic Housing Material Plastic Grinding Wheel Included No Motor Bearings Metal Gearing Type N A Brushless No App Compatibility No Arbor Diameter 1 4 in CA Residents: Prop 65 Warning(s) Yes Safety Listing UL safety listing Switch Type Sliding switch Works with Android No Overload Protection No Cordless Yes Works with iOS No Sub Brand PWRCore 20 Wheel Diameter (Inches) 4