Shun Warranty Information & Sharpening

Shun brand products sold by Kai USA Ltd. are backed by a Limited Warranty against manufacturing defects. In addition to supporting our products with this warranty, we will be happy to sharpen your Shun or Kai knife for free for as long as you own the knife. 

Warranty applies to purchases made through authorized dealers only. Click here for more information on authorized dealers.

Process a Warranty/Repair Claim

FREE Sharpening

We will sharpen your Shun cutlery for free, for as long as you own it. It’s as simple as that. You pay for shipping and processing, and our expert sharpening services are FREE. If you live in the area, you may also bring your Shun knives in for free sharpening. We can sharpen up to two knives while you wait; more than two and they will be ready for you to pick up the next day. Please note that serrated knives can be honed by our service, but cannot be sharpened.

Free sharpening services apply to purchases made through authorized dealers only. Click here for more information on authorized dealers.

If you have questions about our sharpening services or your limited warranty and 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.


We’re sorry, but our warranty service center does not have the proper equipment to successfully sharpen scissors/shears. However, we would be happy to hone any of the shears Kai USA sells:  Kershaw Taskmaster Shears (model 1120), Shun Multi-Function Shears (model DM7300), Shun Herb Shears (model DM7100), and Shun Premium Kitchen Shears (model DM7240). Honing simply brings the edge back to true; it does not remove metal from the shears.

If you have Kasho professional hair shears, please send them to Kasho for sharpening.

If you have Kai textile shears, please take them to a professional shears sharpener in your area.

Before you send scissors/shears in for service, please call our Warranty Service Team toll-free at 1-800-325-2891.

Limited Lifetime Warranty

Shun Cutlery from Kai USA Ltd. carries a limited warranty for the lifetime of the original owner, except when stated otherwise. We guarantee our knives against manufacturing defects in material and construction and to perform as advertised when properly used and maintained. The Limited Lifetime Warranty is non-transferable and does not extend to normal signs of wear, rust, damage or breakage due to improper use, improper maintenance, accidents, loss, or theft. This warranty is void on products that have been modified in any way. Any product we determine to be defective will be repaired or replaced solely at our discretion. 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, the owner may also have other rights that can vary by state. No other warranties are implied or expressed other than what is specifically stated here. Kai USA Ltd. reserves the right to determine what constitutes normal wear, improper use/maintenance, and modification.


Please be sure to read the Limited Lifetime Warranty information above.

In addition, there may be cases when a Shun knife has been evaluated and is eligible for warranty service, but may not be able to be repaired or replaced. This can be true with discontinued models. In such cases, at our discretion, we will issue a voucher for the original Manufacturer’s Suggested Retail Price. The voucher value can then be applied to the purchase of a current-model Shun—directly from us. If you also wish to have your original knife returned, please call our warranty team toll-free: 1-800-325-2891. We will retain the knife for 30 days from the date the voucher is issued. If it is not reclaimed by then, the knife will be recycled.

Wood accessories 90-Day Warranty

Shun’s wood accessories are made of natural materials that will show wear over time. This is not a defect. Our 90-Day Warranty protects you against original manufacturing defects, but not natural wear.

Liability Disclaimer

Shun Cutlery products are intended and sold for legitimate culinary 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. Shun Cutlery/Kai USA Ltd. is not responsible for any injuries resulting from misuse or abuse of the product. Knives are intended to be used for cutting purposes only. Do not use knives for stabbing or piercing. Use your knives on meats and vegetables only, not on bones or very thick-skinned vegetables. For this heavier kitchen work, try the Shun Classic Meat Cleaver (DM0767), or Shun Classic 8” Western Chef’s Knife (DM0766), which are designed to handle more aggressive work in the kitchen, such as breaking down chicken and preparing thick-skinned vegetables like butternut squash or melons.

Warranty Information

Shipping Information

How to Receive Shun Sharpening & Warranty/Repair Service

  1. To send in a Shun 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.
  2. Fill out the form completely. Please be sure to enclose Shipping & Processing Fees (see below) via check, money order, or include your credit card information on the form. Print two copies of the form. Include one with the items you are sending for service; keep one for your records. 
  3. Package the items safely. Please use a box; envelopes are not recommended. IMPORTANT: We cannot be responsible for damage to or loss of items that are not properly packaged and shipped. Get safe packing tips here.
  4. 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.
  5. Please allow two weeks for sharpening and warranty order plus round-trip shipping of up to four weeks.

Shipping & Processing Fee

Shipping and processing fees are required for all Shun sharpening and warranty services. The fee is $5 for the first knife, $2 for each additional knife. Please enclose check or money order with your items or include credit card information in the space provided on the Shun Warranty & Sharpening Request Form. Canadian customers: please include a flat fee of $15 for shipping and processing. Other international customers please call or email for a quote prior to sending knives in for service. 


Warranty/sharpening requests that do not include the shipping and processing fee will not be able to be processed and may be returned without service.

Learn about safe packing tips

Shipping Internationally

When shipping from anywhere outside the United States, you must include our Warranty & Sharpening Request 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.

Mislabeled or misdeclared shipments can cause extended delays through customs.  We encourage all international customers to contact us via email prior to sending any items in for service. We can help make sure you have correct codes and values to make shipping as speedy as possible.

Please email us at

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.

Please ship to:

KAI USA LTD., Shun Cutlery

Warranty Department

18600 SW Teton Avenue, Tualatin, Oregon 97062