Quick rules for flying with multi-tool in carry-on and checked baggage. Verdicts and conditions across the major aviation regions below.
Any multi-tool with a blade is banned from carry-on. Bladeless multi-tools (just screwdriver/file/scissors under 4 in) may be allowed. When in doubt, check it.
Any multi-tool with a blade banned from carry-on — must be checked. Blade-free models sometimes refused at security too; checked is safer.
Multi-tools with blades to checked. Blade-free sometimes refused at UK security; checked safest.
Multi-tools with blades to checked.
Any multi-tool with a blade prohibited in carry-on — must go in checked. Japan, Singapore strict: confiscated if forgotten. Even blade-free multi-tools (Leatherman Style PS) are sometimes refused at Asian security checkpoints, especially in Tokyo and Beijing.
Multi-tools with blades must be checked. Australia + NZ: even blade-free models sometimes confiscated at security — pack everything in checked to be safe.