How high is the number of motor revolutions of electric tools

The number of motor revolutions, often referred to as "no-load speed" or "RPM" (Revolutions Per Minute), of electric tools can vary widely depending on the type and purpose of the tool. The RPM rating indicates how fast the motor rotates when there is no load on the tool, meaning it's not cutting, drilling, or grinding. Here are some general guidelines for the RPM of common electric tools:

1. Drills:

   • Corded electric drills typically have no-load speeds ranging from 500 RPM for low-speed models to 3,000 RPM or more for high-speed models.
   • Cordless drills may have similar RPM ranges, but the RPM can vary depending on the voltage and type of battery.

2. Angle Grinders:

   • Angle grinders can have no-load speeds anywhere from 4,000 RPM for smaller models to 11,000 RPM or more for larger, high-powered grinders.

3. Circular Saws:

   • Circular saws often have no-load speeds ranging from 4,000 to 5,500 RPM or even higher for professional-grade models.

4. Jigsaws:

   • Jigsaws typically have variable speed settings, allowing you to adjust the RPM based on the material you're cutting. They can range from 500 RPM to 3,000 RPM or more.

5. Reciprocating Saws:

   • Reciprocating saws can have no-load speeds between 2,500 and 3,000 RPM for standard models.

6. Sanders:

   • Electric sanders, such as orbital sanders and random orbital sanders, may have no-load speeds ranging from 5,000 to 12,000 RPM or higher, depending on the type and size.

7. Router:

   • Routers used for woodworking can have variable speed settings with no-load speeds ranging from 8,000 to 30,000 RPM or more.

It's important to note that the RPM of a power tool can vary based on the tool's design, brand, model, and intended use. High-speed tools are often used for tasks that require fine cutting or finishing work, while lower-speed tools are suitable for tasks where precision and control are more critical.

When selecting an electric tool, consider the RPM along with other factors such as the tool's power, the type of work you'll be performing, and the material you'll be working with. Always follow the manufacturer's recommendations for proper tool usage and safety guidelines, and adjust the tool's speed settings as needed for your specific application.