Lightweight, quiet, and easily adjustable, our 4-inch angle grinder is perfect for jobs that require more precision and control than offered by the standard 4-1/2 inch grinder. This 3/4-horsepower workhorse runs free at an impressive 10,000 RPM yet maintains a constant speed and torque control while grinding. Operating at less than 80 decibels, this grinder offers a comfortable, vibration absorbing handle that won't wear out your hands. And its all wrapped up in a package that weighs in at about 3-1/2 pounds. Of course you can't beat it -- it's from JET.