Anti-restart function to prevent accidental start up Soft start Variable speed control Constant speed control under load Electronic current limiter for overload protection Slide type switch with lock On function for continuous operation Sjs II (super joint system) to provide increased machine durability by absorbing the vibration produced by the wheel grinding or cutting material Designed with slim housing for easy handling Removable Side handle can be mounted on either the left or right hand side Double insulation, Weight: 4.850169764 pounds, Manufacturer: Makita