Answer
Mar 11, 2026 - 01:38 PM
Free speed, measured in RPM (revolutions per minute), dictates how fast the grinder spins without load. Higher RPM allows for faster material removal and smoother finishes, especially on metalwork, while lower RPM can provide more control for delicate tasks. A common high free speed, such as 20,000 RPM, offers efficiency for most applications. The Pneaumatic 90 ° Angle Die Grinder with 1/4" Collet Wurth provides a rapid 20,000 RPM, ideal for quick and effective grinding. With a range of RPMs available, you can choose the grinder that delivers the speed you need for your specific tasks.
