Ryobi P421 6500 RPM 4 1/2 Inch 18-Volt One+ Lithium Ion-Powered Angle Grinder (Battery Not Included, Power Tool Only) ADJUSTABLE: Side handle works in three different positions and the triggered grip rotates 90 degrees so you can fit this tool almost anywhere you would need to grind ONBOARD PIN WRENCH included with the tool so you can easily replace grinder discs GRINDING WHEEL INCLUDED: Type 27 grinding wheel for metalworking or home improvement projects COMFORTABLE HANDLING: Rubberized notched grip near the trigger allows you to handle this tool in most conditions with grease or oil on your hands ONE+ COMPATIBLE: This tool works with Ryobi batteries from the One+ Lithium Ion series and also older NiCad Models (Battery models include P100, P101, P102, P103, P104, P105, P107, P108)