How Do You Use A Rivet Tool – For Permanent Metal-To-Metal Joints

ByJim Boslice Metalworking & Fabrication

To use a rivet tool, insert the rivet mandrel into the tool’s nosepiece, place the rivet body into your pre-drilled hole, and squeeze the handles until the mandrel snaps off.

Ensure your hole size matches the rivet diameter and keep the tool flush against the material surface for a secure, tight fit.

You have a project that requires joining two pieces of sheet metal, but welding feels like overkill or isn’t possible in your current setup. Maybe you are repairing a classic aluminum trailer or building a custom storage rack for your garage.

The humble pop rivet is your best friend in these scenarios. It creates a vibration-resistant, permanent bond that holds up under pressure without the need for high-heat equipment or specialized electrical circuits.

If you have ever wondered how do you use a rivet tool to get professional-grade results, you are in the right place. Let’s break down the process so you can start fastening with confidence today.

Understanding the Basics of Pop Riveting

Before you start squeezing handles, it helps to understand what is actually happening inside that joint. A pop rivet, or blind rivet, consists of two parts: the hollow rivet body and the solid mandrel that runs through the center.

When you actuate the tool, it pulls the mandrel head into the rivet body. This force causes the body to expand or “mushroom” on the blind side of your material, effectively clamping the pieces together.

The mandrel is designed to snap off once the correct amount of tension is reached. This leaves you with a clean, finished head on the outside and a secure connection on the back side you cannot even see.

Essential Tools and Material Preparation

Success starts long before you reach for the rivet gun. You need to ensure your materials are ready to receive the fastener, starting with the hole diameter.

Check the packaging of your rivets for the recommended drill bit size. If the hole is too large, the rivet will be loose; if it is too small, the rivet body will deform before it can seat properly. Pro Tip: Always de-burr your holes after drilling. A clean, smooth hole allows the rivet head to sit flush against the surface, ensuring a much stronger, weather-resistant joint.

How Do You Use a Rivet Tool Step-by-Step

Now that you have your materials prepped, let’s walk through the actual operation. If you follow these steps carefully, you will achieve a perfect, professional-looking set every time.

  1. Select the right nosepiece: Most manual rivet tools come with multiple nosepieces. Choose the one that matches the diameter of your rivet shank.
  2. Insert the rivet: Slide the mandrel of the rivet into the nosepiece of the tool. You should feel it seat firmly.
  3. Position the rivet: Insert the rivet body through the pre-drilled holes in your workpieces. Ensure the pieces are clamped tightly together before you begin.
  4. Apply pressure: Keep the tool head flush against the material. Squeeze the handles firmly. You may need to squeeze once, release, and squeeze again if the tool does not pull the mandrel all the way through in one motion.
  5. Snap and release: Once the rivet is fully set, the mandrel will snap off with a distinct “pop.” The tool will release the spent mandrel tail when you open the handles fully.

Common Mistakes and How to Avoid Them

Even seasoned garage tinkerers run into issues with rivet installation. One of the most common mistakes is not keeping the tool perpendicular to the surface.

If you hold the tool at an angle, you risk deforming the rivet head or causing the mandrel to snap prematurely. Always take a second to ensure the tool is square to your work.

Another frequent issue is using a rivet that is too short for the combined thickness of your materials. If the rivet body doesn’t have enough length to expand properly on the back side, the joint will be weak and eventually fail.

Selecting the Right Rivets for Your Project

Not all rivets are created equal. You must consider both the material of the rivet and the material you are joining. Mixing metals—like using aluminum rivets on stainless steel—can lead to galvanic corrosion over time.

When in doubt, match the rivet material to the material of the sheets you are joining. If you are joining aluminum, use aluminum rivets. If you are joining steel, use steel or stainless steel rivets.

Also, consider the rivet head type. Dome head rivets are standard for most projects, while countersunk rivets are designed for applications where you need a completely flat, flush surface.

Frequently Asked Questions About Rivet Tools

Can I use a rivet tool on wood?

While rivets are primarily designed for metal-to-metal joints, you can use them in woodworking if you back the wood with a metal plate or a washer. Without a backing, the rivet will likely crush the wood fibers and pull through, resulting in a loose connection.

What do I do if the mandrel gets stuck in the tool?

This usually happens when you use the wrong size nosepiece or when the jaws inside the tool are dirty. Open the tool, remove the nosepiece, and use a pair of pliers to pull out the stuck mandrel tail. Clean the internal jaws with a bit of degreaser to ensure they grip the next mandrel properly.

Is it possible to remove a rivet once it is set?

Yes, removing a rivet is straightforward. Use a drill bit slightly larger than the rivet body and drill into the center of the rivet head. Once the head is removed, the rest of the rivet body will push out of the hole easily.

How many times should I squeeze the handle?

For most standard hand riveters, you should be able to set the rivet in one to two firm, steady squeezes. If you find yourself needing to squeeze four or five times, your tool might need maintenance, or you might be using a rivet that is too large for the tool’s capacity.

Final Thoughts on Mastering Your Workshop

Learning how to use a rivet tool effectively opens up a world of possibilities for your DIY projects. Whether you are building custom cabinetry, repairing automotive panels, or fabricating metal brackets, this simple tool is a game-changer for your workshop.

Remember to prioritize safety by wearing eye protection and always double-check your hole sizes before you start. With a little practice, you will find that riveting is one of the most reliable and satisfying ways to join materials in your shop.

Keep tinkering, stay safe, and enjoy the process of building things that last. You have the skills—now go put them to work!

Jim Boslice
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