Genesis Angle Grinder, Tool Only/Battery Included: Battery Included, 20 V, 2 Ah Battery, Arbor Hole: 5/8-11, 4-1/2 in Wheel Diameter, 7000 rpm Speed, Includes: Battery, Charger and Grinding Wheel, Lock-On Switch Control, 2-Position Auxiliary HandleFully featured – designed for the grinding and metal cutting jobsBarrel-grip design for comfort and control5/8-11 UNC arbor fits all commonly used wheels, brushes and other accessoriesTool-less adjustable guard2-position auxiliary handleLock-on switch for extended useSafety switch prevents accidental startupSpindle lock for single wrench wheel changesQuick-charger included for fast battery recharging