In the world of plumbing, precision and reliability are paramount. For those working with metal pipes, especially copper, the M profile press jaws have emerged as a game-changing tool. These jaws are designed to make secure, efficient, and leak-proof connections, simplifying the installation process and improving the overall quality of plumbing work. In this blog, we'll explore what M profile press jaws are, their benefits, and how to use them effectively in your plumbing projects.


What Are M Profile Press Jaws?


M profile press jaws are specialized tools used with press fitting systems to join metal pipes, primarily copper, in plumbing applications. The "M profile" refers to the shape of the jaw's pressing contour, which is engineered to create a strong, uniform seal around the pipe and fitting. When used with a compatible press tool, M profile press jaws compress the fitting onto the pipe, forming a secure connection without the need for soldering or welding.


Benefits of Using M Profile Press Jaws


  1. Enhanced Efficiency: The press fitting process with M profile jaws is significantly faster than traditional methods. This efficiency translates to time savings, especially on large projects or in time-sensitive situations.

  2. Improved Safety: Unlike soldering, which involves open flames and flux, press fitting with M profile jaws eliminates fire hazards and reduces exposure to harmful fumes. This makes it a safer option for both professionals and DIY enthusiasts.

  3. Consistency and Reliability: M profile press jaws provide a consistent and even compression around the pipe, ensuring a reliable, leak-proof seal. This consistency is particularly beneficial in maintaining the integrity of plumbing systems over time.

  4. Ease of Use: Even those with limited plumbing experience can achieve professional results with M profile press jaws. The straightforward operation reduces the learning curve and potential for error compared to traditional soldering techniques.

  5. Versatility: M profile press jaws are compatible with various pipe sizes and types of fittings, making them a versatile addition to any plumbing toolkit. They are suitable for use in residential, commercial, and industrial applications.


How to Use M Profile Press Jaws for Plumbing


Step 1: Gather Your Tools and Materials


  • Press tool (manual, battery-powered, or electric)
  • M profile press jaws for the specific pipe size
  • Copper or other compatible metal pipes and press fittings
  • Pipe cutter or hacksaw
  • Deburring tool
  • Measuring tape
  • Marker


Step 2: Prepare the Pipe


  1. Measure and Cut: Measure the required length of the pipe and use a pipe cutter or hacksaw to cut it to size. Ensure the cut is clean and straight.

  2. Deburr: Use a deburring tool to remove any rough edges or burrs from the cut end of the pipe. This is crucial for achieving a proper seal and preventing damage to the fitting’s O-rings.

  3. Mark the Insertion Depth: Insert the pipe into the fitting until it reaches the bottom. Use a marker to draw a line around the pipe at the edge of the fitting. This mark will help ensure the pipe is fully inserted during the pressing process.


Step 3: Assemble and Press


  1. Attach the Press Jaw: Select the appropriate M profile press jaw for your pipe size and attach it to the press tool.

  2. Position the Fitting: Slide the press fitting onto the pipe, aligning it with the mark you made earlier.

  3. Align the Press Tool: Position the press jaw around the fitting, ensuring it is properly aligned and centered.

  4. Activate the Press Tool: Depending on your press tool type, either squeeze the handle or press the trigger to activate the tool. The press jaw will compress the fitting around the pipe, forming a secure connection.

  5. Inspect the Joint: After pressing, inspect the joint to ensure the fitting is evenly compressed and the pipe is fully inserted. The fitting should be securely attached and immobile.


Maintenance and Troubleshooting


  • Regular Inspection: Periodically check your M profile press jaws and press tool for signs of wear or damage. Replace any worn parts to maintain optimal performance.
  • Cleanliness: Keep the press jaws and tool clean to prevent debris from affecting the pressing mechanism.
  • Calibration: Some press tools may require periodic calibration to ensure consistent pressure. Follow the manufacturer’s guidelines for maintenance and calibration.




M profile press jaws offer a modern, efficient, and safe solution for joining metal pipes in plumbing systems. Their ease of use, reliability, and versatility make them an invaluable tool for both professional plumbers and DIY enthusiasts. By following the steps outlined in this guide, you can achieve secure, leak-proof connections with confidence and precision. Embrace the future of plumbing with M profile press jaws and elevate the quality of your work. Happy plumbing!


Recommended Angled Press Jaws


There are several angled press jaws available in the market but our most popular sets are as follows.


Novopress Angled Jaws Set


The Novopress Angled Jaw Set, is tailored for copper metric sizes of up to 35mm. This set offers the choice between M Profile or V Profile, providing flexibility based on your needs. The kit includes angled adaptors suitable for both smaller 12V machines and larger 18V machines. The standout feature lies in the jaws’ ability to be rotated to the maximum angle, greatly enhancing usability in challenging installation spaces—especially in narrow or angled areas that are typically hard to access.

In the set you will get:

  • 15mm and 22mm sling
  • additional jaws up to 35mm (up charge inc.)
  • Novopress Angled Adaptor
  • 1 x Kitbox


REMS Angled Jaws Set


The REMS Angled Press Jaws offer versatility with options for 15mm and 22mm heads or 28mm and 35mm heads. Available in M Profile or V Profile, these jaws are designed for Mini-Press users, allowing pressing at any angle within a 180° range. This flexibility facilitates pressing in challenging spaces like against walls or inside shafts, making it easier to navigate restricted areas during plumbing tasks.

In this set you will get:

  • 15mm and 22mm sling
  • additional jaws up to 35mm (up charge inc.)
  • Angled Adaptor
  • 1 x Kitbox