The MAC Knife, Inc. USA warranty covers any defects in the materials or workmanship of our products for 25 years from the date of purchase. This does not include accidental or incidental damage including broken or bent tips; staining or corrosion to the blade; or any cosmetic scratches, chips, or dents to the handle or blade that occur during normal use.  This warranty is non-transferable and is valid only to the original purchaser. Warranty claims can be made by calling us at 1-888-MAC-KNIFE (1-888-622-5643) or by filling out our Warranty Form (Note: In order to use our online forms you must have a valid email address). One of our representatives will then email you with instructions on how to send back your product.  

Please note:  Warranty claims for products purchased in Hawaii should be made with MAC Japan.  You can email them at info@mac-international.com


Please address your package to:

MAC Knife Inc.
Attn: RMA# (Insert your RMA# here)
9624 Kiefer Blvd Ste 1
Sacramento, CA 95827

When preparing your knife for return please be sure to include a note with your Name, Return Address, Phone Number and/or Email Address where you would like us to contact you, and your RMA#.

Be sure to protect the tip and edge of the knife so that it does not puncture the outer packaging during transport. The easiest way is to roll the knife in several layers of newspaper and securing it with tape or rubber bands. Do not put any tape directly on the knife itself; it leaves a sticky mess that is difficult to remove. MAC Knife, Inc. will not be responsible for items lost during transit or for any injury caused to carrier employees due to improper packaging of a product.


Returned knives will be inspected and tested to determine if the damage was caused by a defect in the product. Damage to a product caused by accident or improper use will not be covered under warranty. Certain foods are too hard to be cut with a knife and should be avoided such as: frozen items, bones, shellfish shells, hard squashes, hard cheeses, nut shells, blocks of chocolate, etc. Defective knives will be replaced, repaired, or refunded at our discretion. If we find that the product is not defective, we can try to repair it for you at a small fee (see Sharpening/Repair Services). One of our representatives will call or email you with our findings within 10 business days of receiving your items. If you are not contacted within 15 business days, please call 1-888-MAC-KNIFE (1-888-622-5643) to check on the status of your return.