A ratchet cutter is used to precisely cut pipes, often PVC or PEX, by applying pressure with a sharp blade through a ratcheting mechanism.
Using a ratchet cutter involves positioning the pipe and repeatedly squeezing the handles to drive a blade through the material, guided by a ratcheting action. This mechanism allows for significant cutting force to be applied incrementally.
Understanding the Ratchet Cutter Mechanism
A ratchet cutter typically has a sharp, curved blade and a fixed anvil or jaw. The handles are connected to a ratcheting mechanism. Each time you squeeze the handles together, the ratchet advances the blade slightly further into the pipe. When you release the handles, the blade holds its position, allowing you to reset your grip and squeeze again. This process continues until the blade cuts completely through the pipe.
Step-by-Step Guide to Cutting Pipe
Cutting pipe with a ratchet cutter is a straightforward process that ensures clean, square cuts. Follow these steps for effective use:
- Mark Your Cut: First, determine exactly where you need to cut the pipe. As shown in the reference, "I have my pipe marked here where I want to cut it." Use a pencil or marker to draw a line around the pipe at the desired location. This mark serves as your guide for positioning the cutter.
- Open the Cutter: Squeeze the handles briefly and then fully release them. This action typically opens the blade wide enough to accommodate the pipe diameter. Some cutters may have a specific release lever.
- Position the Pipe: Place the marked section of the pipe between the open blade and the anvil of the cutter. Ensure the blade is aligned precisely with your mark for an accurate cut. The pipe should sit snugly in the cutter's jaws.
- Begin Ratcheting: Grip the handles firmly. Begin squeezing the handles together. You will feel the ratchet mechanism engage as the blade starts to press into the pipe wall. Release the handles, then squeeze again. Repeat this "ratcheting" action. The reference notes that "From here it's just a matter of ratcheting."
- Cut Carefully Near the End: As the blade gets closer to cutting all the way through the pipe, apply pressure more cautiously. According to the reference, "When I get down to where it's about to cut the pipe, I'm going to go a little slower and more careful." This helps prevent crushing or deforming the pipe in the final stages of the cut and ensures a clean finish.
- Complete the Cut: Continue the careful ratcheting action until the blade passes completely through the pipe.
- Release and Inspect: Once the pipe is severed, release the handles fully to open the blade. Remove the cut pipe section and inspect the cut edge for cleanliness and squareness. Minor burrs can often be removed with a utility knife or sandpaper.
Tips for a Clean Cut
- Ensure the blade is sharp. A dull blade can crush or deform the pipe instead of cutting it cleanly.
- Position the pipe squarely against the anvil and align the blade accurately with your mark.
- Maintain steady pressure and alignment throughout the cutting process.
- Don't force the cut too quickly, especially with larger diameter or thicker-walled pipes. The ratcheting mechanism is designed for controlled, incremental pressure.
Following these steps, including marking the pipe and slowing down when the cut is nearly complete, helps you use a ratchet cutter effectively for clean, precise cuts on various types of pipe.
