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Cut the Pipe with a Snap Cutter — Cut the Copper Pipe

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How to Cut and Prepare Copper Pipe for a Perfect Joint · Step 2 of 5

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In this video

Position the snap cutter around the pipe, aligning the cutting wheels with the marked line. Ensure the maximum number of cutting wheels are in contact with the pipe. First, apply moderate pressure to the handles to score the pipe, making a visible indent. Release the pressure, rotate the pipe slightly within the cutter's chain, and then apply quick, firm pressure to the handles to snap the pipe cleanly along the score line.

Goal: Achieve a clean, square cut on the cast iron pipe.

  • The scoring step is the key to making a straight, clean cut. If the snap fails, it was likely not scored properly.
  • Apply quick pressure to snap the pipe after scoring; do not slowly increase pressure.

Used in this video

  • Snap Cutter (Tool Type: Tubing cutter, Power Source: Manual, Pipe Repair Tool: Pipe Cutter)Scoring and snapping the cast iron pipe.
50.3K views2342 minutes
Roger Wakefield Plumbing Education

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FAQs

Why is proper cleaning and deburring so important for copper pipe joints?

Thorough cleaning and deburring are critical for creating a strong, leak-free soldered joint. Burrs inside the pipe can restrict water flow and prevent the fitting from seating correctly, while exterior burrs and contaminants inhibit the solder from flowing smoothly and bonding properly with the copper.

Do I really need all the specialized tools listed, like the tube cutter and reamer?

Yes, for professional and reliable results, specialized tools are highly recommended. A dedicated tube cutter ensures straight, clean cuts without deforming the pipe, and a reamer is crucial for removing internal burrs that could restrict water flow and compromise the fitting connection. Substitutes often lead to poor quality joints and potential leaks.

What are the most common mistakes beginners make when cutting and preparing copper pipe, and how can I avoid them?

Common mistakes include rushing the cleaning and deburring steps, making inaccurate measurements, and crooked cuts. To avoid these, take your time, double-check all measurements before cutting, and ensure the pipe cutter is square to the pipe for a clean, straight cut. Practice on scrap pieces first.

What safety precautions should I take when working with copper pipe?

Always wear safety glasses to protect your eyes from metal shavings and debris. Consider wearing gloves when handling freshly cut pipe or using emery cloth to prevent cuts and abrasions. Ensure your work area is stable and well-lit to prevent accidents.

Transcript
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of pipe. Position the snap cutter securely so that the pipe is square and the maximum number of cutting wheels come in contact with the pipe. Score the pipe by applying pressure to the handles. You just want the cutting wheels to make an indent. Then release the pressure on the handles and rotate the pipe a few degrees in the chain. When using a snap cutter, the scoring step is the key to making a straight clean cut. If something goes wrong with the actual snap, it likely wasn't scored properly to begin with. Apply quick pressure to the handle to complete the cut. There are two common methods for joining Castiron pipe and fittings.

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