Expert Tips for Using an Angle Grinder to Cut Clay Pipes

Clay pipes are commonly used in various plumbing and drainage applications due to their durability and resistance to chemical corrosion. However, when it comes to modifying or repairing these pipes, cutting them accurately can be a challenge. One effective method for cutting clay pipes is using an angle grinder. In this guide, we will walk you through how to cut clay pipe with angle grinder.

how to cut clay pipe with angle grinder

Introduction to Angle Grinders

An angle grinder is a versatile power tool that features a rotating abrasive disc to perform various tasks, including cutting, grinding, and polishing. When equipped with the right cutting tool, an angle grinder becomes a powerful tool for cutting through tough materials like clay pipes.


Tools and Materials Needed

Before you begin cutting your clay pipe, gather the following tools and materials:

  • Angle Grinder: Choose a high-quality angle grinder with a diamond bladesuitable for cutting through hard materials like clay and ceramic.
  • Safety Gear:Wear safety goggles, gloves, and a dust mask to protect yourself from debris and dust.
  • Clamps or Vise:Secure the clay pipe firmly in place during cutting.
  • Marker Pen or Chalk: Use to mark the cutting line on the pipe.
  • Measuring Tape: For precise measurements.
  • Water Supply: Optionally, have a water source nearby to cool down the cutting area and reduce dust.


Choosing the Right Diamond Blade

When it comes to cutting clay pipes with an angle grinder, selecting the right diamond blade is crucial for achieving clean, precise cuts without damaging the pipe or the cutting tool. Diamond blades are specifically designed to cut through hard materials like clay and ceramic effectively. Here’s a detailed guide on choosing the right diamond blade for cutting clay pipes:

1. Types of Diamond Blades

Diamond blades come in various types, each designed for specific applications. When selecting a diamond blade for cutting clay pipes, consider the following factors:

  • Continuous Rim Diamond Blade:This type of diamond blade features a continuous rim of diamond segments around the circumference of the blade. It provides smooth and chip-free cuts, making it ideal for cutting clay pipes with precision.
  • Turbo Rim Diamond Blade:Turbo rim blades have a serrated rim with segments that are thicker at the core and narrower at the edge. They offer fast cutting speeds and are suitable for both wet and dry cutting applications.
  • Segmented Diamond Blade:Segmented diamond blades have gaps or slots between the diamond segments, allowing for better cooling and debris removal during cutting. They are versatile and can handle a wide range of materials, including clay pipes.

2. Choosing the Right Size and Arbor

Ensure that the diamond blade you choose is compatible with your angle grinder in terms of size and arbor (the central mounting hole). Check the diameter of your angle grinder’s arbor and choose a diamond blade that matches this specification. Using the correct size ensures safety and optimal performance during cutting.

3. Consider the Material and Application

Select a diamond blade specifically designed for cutting hard materials like clay and ceramic. Blades designed for general-purpose cutting may not be suitable for tough materials like clay pipes. Look for diamond blades labeled for masonry, ceramics, or hard tiles to ensure they can handle the rigors of cutting clay pipes.


Step-by-Step Guide

Follow these steps to cut a clay pipe using an angle grinder:

Step 1: Prepare the Work Area

Choose a well-ventilated area for cutting and ensure there are no flammable materials nearby. Secure your workpiece (the clay pipe) using clamps or a vise to prevent it from moving during cutting.

Step 2: Mark the Cutting Line

Using a marker pen or chalk, carefully mark the cutting line on the clay pipe. Use a measuring tape to ensure accuracy in your markings.

Step 3: Put on Safety Gear

Before operating the angle grinder, put on your safety goggles, gloves, and a dust mask to protect yourself from flying debris and dust.

Step 4: Set Up the Angle Grinder

Attach the appropriate cutting blade (diamond or abrasive) to your angle grinder. Make sure it is securely fastened according to the manufacturer’s instructions. Adjust the guard of the grinder to protect yourself from sparks and debris.


Step 5: Start Cutting

Position the angle grinder at the beginning of your marked cutting line. Hold the grinder firmly with both hands and slowly begin cutting into the clay pipe. Apply gentle pressure and let the grinder’s speed do the work.

Step 6: Maintain a Steady Pace

Continue cutting along the marked line, maintaining a steady pace and applying consistent pressure. Avoid rushing the process to ensure a clean and precise cut.

Step 7: Cool the Cutting Area (Optional)

If you notice excessive heat or dust buildup, you can periodically spray water onto the cutting area to cool it down and reduce dust levels. This also helps prevent the clay from cracking due to heat stress.

Step 8: Complete the Cut

Once you have cut through the clay pipe, switch off the angle grinder and allow the blade to come to a complete stop before setting it down. Inspect the cut edge for any rough spots or imperfections.


Safety Tips

  1. Always wear appropriate safety gear, including goggles, gloves, and a dust mask.
  2. Ensure the clay pipe is securely clamped or held in place during cutting.
  3. Take breaks as needed to prevent overheating of the angle grinder.
  4. Avoid cutting near flammable materials or in confined spaces without proper ventilation.


Cutting clay pipes with an angle grinder can be an effective way to modify or repair plumbing systems. By following this guide and taking necessary safety precautions, you can achieve clean and precise cuts on clay pipes using an angle grinder. Remember to prioritize safety at all times and consult a professional if you are unsure about handling power tools or cutting materials. With practice and careful execution, you can successfully cut clay pipes to fit your specific plumbing needs. Choose the right cutting blade for the job, and enjoy the versatility and efficiency of using an angle grinder for your clay pipe cutting tasks.


BSP Tools – a professional diamond blade manufacturer committed to safety and quality in diamond tools. If you have any needs or questions, feel free to contact us at


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