Can You Carry A Multi-Tool On A Plane? | TSA Rules Explained

The classic multi-tool seems harmless enough. A few pliers, a screwdriver, maybe a small knife. Most people grab one on their way out the door, imagining quick fixes on the road. Air travel sees that same tool get confiscated every single day.

The honest answer depends entirely on what your multi-tool contains. If it has a blade of any length, it must ride in checked luggage. If it has scissors under four inches or no blade at all, you may be able to keep it in your carry-on. The rules differ by country, so one multi-tool might be fine in Toronto but flagged in Chicago.

What The TSA Says About Multi-Tools

The TSA defines multi-tools as multipurpose tools that may include knives, scissors, pliers, screwdrivers, and other implements. The agency’s policy is straightforward: any sharp object with a blade is prohibited in carry-on bags. This includes the small knife blade found on most Leatherman and Gerber models.

Scissors are the one exception. If your multi-tool has scissors shorter than four inches (measured from the pivot point), those may be placed in carry-on luggage. No other blade style gets a pass. Even a tiny penknife blade will be stopped at the checkpoint.

Multi-tools without any blade — sometimes called bladeless multitools — are TSA-compliant and can stay in your carry-on without issue. These tools rely on pliers, wire cutters, screwdrivers, and bottle openers. They lose the knife function but keep the utility.

Why The Blade Is The Dealbreaker

Travelers often assume a small blade won’t matter. The logic goes: “It’s only two inches long, I use it for packages, not weapons.” Security agencies do not see it that way. The TSA’s prohibited items list includes knives of any length in carry-on bags, period.

Here’s what determines carry-on eligibility for a multi-tool:

• Blade present (any length): Must go in checked luggage. Even a one-inch blade is not allowed. The rule is absolute.
• Scissors under four inches: Permitted in carry-on. Measure from the pivot to the tip. Scissors longer than four inches must be checked.
• Pliers, screwdrivers, wrenches: Generally allowed in carry-on as long as they are not sharp or pointed in a threatening way. Most multi-tool pliers are fine.
• Bladeless multi-tools: Fully TSA-compliant for carry-on. No blade means no confiscation risk. These are increasingly popular with frequent flyers.
• Traditional multi-tools with a blade: Almost always prohibited in carry-on. Brands like Leatherman explicitly recommend placing them in checked baggage to avoid loss.

The takeaway is simple: if you see a blade, check the bag. TSA officers are trained to spot them, and confiscation is immediate. There is no appeal at the checkpoint.

Bladeless Multi-Tools And Other Options

If you want to keep a multi-tool in your carry-on, the bladeless category is your only reliable choice. These tools swap the knife for a larger pair of pliers, better wire cutters, or additional screwdriver bits. They are designed specifically for travelers who need utility without security issues.

The TSA officially lists multi-tools under its “sharp objects” and “tools” categories. The agency’s own definition of a multi-tool — which includes knives — is the reason most get flagged. For a clear breakdown, see the TSA multi-tool definition page.

Bladeless models from brands like Gerber, Victorinox, and Leatherman are available. They cost about the same as traditional multi-tools but skip the knife. Many travelers also carry a separate small pair of folding scissors (under four inches) in their personal item as a blade alternative.

When in doubt, a bladeless or scissor-only multi-tool is the safest bet for carry-on travel. These models avoid confiscation entirely and still let you tighten screws, cut zip ties, or open bottles.

How To Travel With Your Multi-Tool

If you need to bring a bladed multi-tool, the process is straightforward: pack it in checked baggage. The TSA permits all sharp objects in checked bags as long as they are sheathed or securely wrapped to prevent injury to baggage handlers.

1. Place it in checked luggage: Wrap the multi-tool in a cloth or put it in a padded pouch. Leatherman and other brands sell dedicated travel cases that keep the tool secure.
2. Consider a bladeless alternative: If you fly often, buy a bladeless multi-tool for your carry-on. It saves the hassle of remembering to check the tool.
3. Ship it ahead: For a single trip, mailing the multi-tool to your destination can be simpler than checking a bag just for the tool.
4. Check your airline’s policy: Some airlines have additional restrictions beyond TSA rules. Always verify before packing.
5. Keep it accessible in checked bags: Security may want to inspect it. Place it near the top of your suitcase so you can retrieve it quickly if asked.

The key is not forgetting the tool in your carry-on. Many travelers realize too late that their Leatherman is still in their backpack. That tool will be surrendered at security with no reimbursement.

International Travel: CATSA And Other Rules

U.S. rules are strict, but other countries give more leeway. The Canadian Air Transport Security Authority (CATSA) permits multi-tools with blades up to 6 cm (about 2.3 inches) in carry-on bags for domestic and international flights that do not go to the United States. If you are flying from Canada to the U.S., the TSA’s stricter rules apply at the gate.

The United Kingdom and most of Europe follow rules similar to the TSA: no knives in the cabin, but small tools without blades are allowed. Australia permits multi-tools with blades under 6 cm in carry-on, but the final decision rests with the screening officer.

For a reliable reference on Canadian rules, check the CATSA blade length rule page. That source confirms the 6 cm blade allowance for flights that don’t touch U.S. airports.

If your itinerary involves multiple countries, default to the strictest rule along the route. A multi-tool that passes Canadian security might be confiscated at a U.S. connection. Always plan ahead when crossing borders.

The Bottom Line

A multi-tool with a blade cannot go in your carry-on bag under TSA rules. Bladeless versions and those with scissors under four inches are generally fine. For international travel, check each country’s regulations separately – CATSA allows small blades for non-U.S. flights, but the TSA does not.

Before you fly, verify your specific multi-tool against the official TSA and CATSA websites, and consider shipping your tool ahead if you need a bladed model. Your airline’s own prohibited-items list may also apply, so check that as well – especially if you are connecting through multiple countries.