Can You Bring Multi-tool (with knife) to United States?
A comprehensive guide on customs declaration and security rules for carrying multi-tool (with knife) to United States via international flight routes.
Carry-on Cabin Bag
NOT ALLOWED
Multi-tools that contain knives, saws, or scissors with blades longer than 4 inches are strictly prohibited in carry-on bags. They must be packed in checked bags.
Security AgencyTSA Guidelines
Checked Hold Baggage
ALLOWED
Multi-tools that contain knives, saws, or scissors with blades longer than 4 inches are strictly prohibited in carry-on bags. They must be packed in checked bags.
Customs AuthorityUnited States Boarder Entry
United States Border Control Policy
Agricultural imports and cash amounts exceeding $10,000 must be declared. Check with official consulate sources if carrying large commercial quantities or specialized equipment.
Last reviewed: June 2026•Reviewed by BringOnPlane Editorial Team
Frequently Asked Questions
Yes, you can carry it, subject to local customs regulations. At airport security checks, United States (TSA) rules apply: carry-on status is NOT ALLOWED and checked baggage is ALLOWED.
For most consumer goods, declaration isn't required. However, Agricultural imports and cash amounts exceeding $10,000 must be declared.
No, United States allows packing it in your checked holds.
Customs agents will confiscate the item, and you could face significant delays, fines, or loss of duty-free entry privileges.
Yes, but ensure you carry a doctor's prescription or original packaging to clear security checks smoothly.
Yes, but batteries must be under 100Wh (or 160Wh with airline approval) and carried in the cabin only.
Security checkpoints utilize X-ray screening and manual baggage checks. Be prepared to remove it from your bag if requested.
No. Most airports globally enforce the standard 3-1-1 limit (under 100ml / 3.4 oz per container in carry-on bags).