Bosch 4.5 in 18 Volt Sliding Switch Cordless Angle Grinder Double Bowl ) 4 in Manufacturer Warranty ) 4 in Manufacturer Warranty 1 Year Variable speed and full hammering frequency of 28800 bpm for high productivity Angle Grinder (battery and charger sold separately) Variable Speed No Number of Batteries Included for Tool 0 Side Handle Yes Battery Type Lithium ion (Li ion) Charger Included No Warranty (Parts) 1 year limited Base Material Plastic Polymer Construction Housing Material Plastic Polymer Construction Grinding Wheel Included No Motor Bearings Open frame Gearing Type Optimized gear structure Brushless No CA Residents: Prop 65 Warning(s) No Sub Brand N A Switch Type Sliding switch Color Finish Family Blue App Compatibility No Works with Android No Cordless Yes Works with iOS No Charge Time (Hours) 0 9 Wheel Diameter (Inches) 4