Zero Tolerance products are backed by a Limited Warranty. In addition to supporting our products with this warranty, we will be happy to sharpen your Zero Tolerance knife for free when you send it in for warranty service. If you have questions about your warranty or how to take advantage of it, please check our FAQs to see whether your question has already been answered. If not, just contact our Warranty Service Team and they’ll be happy to help. For warranty service, please include the Warranty Form and ship products to:
Kai USA Ltd.
18600 SW Teton Ave.
Tualatin, OR 97062
Accidentally broke your ZT folder's blade? We can replace it for you for $30. Please see FAQ under Warranty Questions for complete information.
Limited Lifetime Warranty
Zero Tolerance Knives carry a limited warranty for the lifetime of the original owner, except when stated otherwise. Our products are guaranteed to be free from defects in original material and construction and to perform as advertised when properly used and maintained. Under this warranty, Kai USA Ltd. will repair or replace any product we find to be defective in its original material or construction. This Limited Lifetime Warranty is non-transferable and does not cover normal signs of wear, rust, or damage/breakage due to improper use or maintenance. To receive warranty repair or replacement, the owner must send the product to be evaluated by Kai USA Warranty Services in our Tualatin, Oregon headquarters. In addition to the provisions of this warranty, you may also have other rights that can vary by state. No other warranties are implied or expressed other than what is specifically stated here.
Zero Tolerance Knives are intended and sold for legitimate sporting and professional purposes only. The purchase, use, and ownership of knives are subject to a wide variety of local laws and regulations. Due to the complexity and constantly changing nature of these laws and regulations, it is the responsibility of the buyer to investigate and comply with the laws and regulations that apply in his or her specific area. You, and not Kai USA Ltd., are solely responsible for any claims resulting from violation of these laws and/or regulations. Any use of these products other than cutting is considered misuse and abuse and Kai USA Ltd. is not responsible for any injuries or damages caused by misuse and/or abuse.
Knives are extremely sharp tools and should only be used or handled with the utmost care and caution. Any use other than cutting is considered misuse and abuse—and will void your warranty. Zero Tolerance Knives/Kai USA Ltd. is not responsible for any injuries resulting from misuse or abuse of the product.
Please ship to:
KAI USA LTD., Kershaw Knives
18600 SW Teton Avenue, Tualatin, Oregon 97062
How to Receive Zero Tolerance Sharpening & Warranty Service
- To send in a Zero Tolerance product for evaluation and/or warranty service, including repair and sharpening, please complete the warranty form. Click Process a Warranty Claim on the upper left, then click Download Warranty Form.
- Fill out this form completely, then print two copies. Include one with the items you are sending for warranty service; keep one for your records.
- Package the items safely. Please use a box; envelopes are not allowed.
- Ship via a carrier with a tracking service. Please use UPS, Fed-Ex, US Express Mail, or another carrier with tracking. There must be a way to track your package through your carrier. Kai USA Ltd. cannot be responsible for your item/s unless we have confirmation that your package was delivered to us.
- Please allow up to six weeks for processing, including delivery time. We will contact you if there will be any delay.
IMPORTANT: We cannot be responsible for damage to or loss of items that are not properly packaged and shipped.Learn about safe packing tips
When shipping from anywhere outside the United States, you must include our Warranty Service Form (inside the package) AND the appropriate Customs Declaration Form required by US Customs and Border Protection (on the outside of the package). Your carrier will help you decide on the correct form to use. For Canada Post, for example, you will need form CN22 or CN23.
To avoid unnecessary duty charges, under "Quantity and detailed description of contents" on the form, write the number of knives you are sending and note the description as warranty service.
We reserve the right to refuse any package or to charge you—the sender—for any duties incurred by us for wrongly declared or undeclared packages shipped to our Warranty Department.