Quick Answer
✅ Yes. TSA allows wrenches and pliers in carry-on if they are ≤ 7 inches (18 cm) in length.
❌ Tools longer than 7 inches must go in checked luggage.
✅ All sizes are permitted in checked bags with no restrictions.
Details
- Carry-on:
- Small pliers, adjustable wrenches, and socket wrenches are allowed if ≤ 7 inches.
- Larger wrenches or pliers must go in checked luggage.
- Cutting pliers or sharp-edged pliers may be subject to extra screening.
- Checked luggage:
- Any size or type of wrench and pliers are permitted.
- Must be packed securely to prevent injury to baggage handlers.
- International flights:
- Most countries follow the same 7-inch rule but some may ban all tools in cabins.
TSA Wrench & Pliers Rules Summary
| Tool Type | Carry-On | Checked |
|---|---|---|
| Pliers ≤ 7 in | ✅ Allowed | ✅ Allowed |
| Pliers > 7 in | ❌ Not allowed | ✅ Allowed |
| Wrench ≤ 7 in | ✅ Allowed | ✅ Allowed |
| Wrench > 7 in | ❌ Not allowed | ✅ Allowed |
| Adjustable wrench ≤ 7 in | ✅ Allowed | ✅ Allowed |
Gotchas / Common Issues
- ✈️ Length limit: TSA enforces the 7-inch maximum strictly.
- ✈️ Mixed tool sets: If your toolkit includes larger tools, they must be checked.
- ✈️ Agent discretion: Even allowed tools may be flagged if they look like weapons.
- ✈️ Best practice: Carry only essential small tools, check everything else.