How To Cut Stainless Steel With Angle Grinder?

Stainless steel is a durable and versatile material commonly used in various construction, fabrication, and DIY projects. However, cutting stainless steel can be a challenging task without the right tools and techniques. One of the most effective tools for cutting stainless steel is an angle grinder. In this article, we will explore the step-by-step process of cutting stainless steel using an angle grinder, ensuring clean and precise results.

metal cutting disc

Safety Precautions

Before diving into the cutting process, it is crucial to prioritize safety. Here are a few essential safety precautions to follow:

Personal Protective Equipment (PPE):

  • Safety goggles or a face shield to protect your eyes from flying sparks and debris.
  • Earplugs or earmuffs to protect your hearing from the noise generated by the angle grinder.
  • A dust mask to prevent inhaling metal particles and dust.

Secure Work Area:

  • Clear the work area of any potential hazards or flammable materials.
  • Ensure adequate lighting to maintain visibility during the cutting process.


Choosing the Right Angle Grinder and Disc

To achieve efficient and accurate cuts on stainless steel, it is essential to select the appropriate angle grinder and cutting disc. Consider the following factors:

Angle Grinder Selection:

  1. Opt for a high-quality angle grinder with a power rating of at least 9 amps.
  2. Choose a grinder with a small or medium-sized wheel for better control and maneuverability.

Cutting Disc:

  1. Select a cutting disc for stainless steel.
  2. Look for a disc labeled “INOX” or “SS” to ensure compatibility with stainless steel.
  3. Opt for a thin cutting disc(1.0-1.6mm) for cleaner and faster cuts.

metal cutting disc

Cutting Stainless Steel with an Angle Grinder – Step by Step:

Step 1: Marking the Cut Line

Using a marker or a scribe, mark the area on the stainless steel where you intend to make the cut. Ensure the marking is clear and visible.

Step 2: Positioning the Angle Grinder

Hold the angle grinder firmly with both hands, ensuring a comfortable grip. Position the cutting wheel parallel to the marked cut line.

Step 3: Starting the Angle Grinder

Switch on the angle grinder and allow the cutting wheel to reach its maximum speed before making contact with the stainless steel.

Step 4: Making the Cut

Gently lower the spinning cutting wheel onto the marked cut line. Apply moderate pressure to the angle grinder, allowing the cutting wheel to work its way through the stainless steel. Keep the grinder steady and follow the marked line, progressing slowly and steadily.

Step 5: Cooling the Workpiece

To prevent overheating and maintain cutting efficiency, periodically cool the stainless steel by pausing the cutting process and allowing the metal to cool naturally or using a coolant spray. This step is especially crucial for thicker stainless steel sections.

Step 6: Finishing Touches

Once the cut is complete, switch off the angle grinder and let the cutting wheel come to a complete stop. Inspect the cut edge for any burrs or rough spots. If necessary, use a deburring tool or a grinding wheel to smooth out any imperfections.

cutting disc for stainless steel

Additional Tips and Considerations:

  1. Work with a steady hand and maintain a consistent cutting speed for cleaner cuts.
  2. Choose the appropriate cutting wheelthickness for the desired cut and thickness of stainless steel.
  3. Regularly inspect the cutting wheel for signs of wear and replace it when necessary to maintain cutting effectiveness.
  4. Consider using cutting lubricants or coolants to improve cutting performance and extend the life of the cutting wheel.



Cutting stainless steel with an angle grinder requires careful preparation, the right tools, and a methodical approach. By following the step-by-step process outlined in this article, you can confidently tackle stainless steel cutting projects with precision and achieve clean, professional results. Remember to prioritize safety at all times and exercise caution when handling power tools. With practice and experience, you’ll soon master the art of cutting stainless steel with an angle grinder.