Hitachi G23SCY 9-Inch 15-Amp Low Vibration Angle Grinder, AC/DC Features User Vibration Protection (UVP) technology that reduces full load tri-axial vibration by up to 30% UVP technology employed via a flexible main handle and side handle that reduces vibration to only 3.3 meters per second squared- the lowest vibration level in its class Adjustable side handle and main handle covered in soft elastomer grip which absorbs vibration and provides a comfortable and secure grip Features new 2-part stator coil design that offers 1.5 times the surface area for 25% cooler operation Gear structure lessens kickback effect experienced during start up 15 Amp motor with 1,700 watts of input power and 10% more output power than competitive models at 1,110 watts One-touch quick off mechanism provides added safety Easy to manipulate spindle lock makes it simple to change out accessories as needed Dust protected switches and sealed armatures protect the internal components from harmful dust and debris Lightweight at 11.2 lbs for easier operation