IMPORTANT INFORMATION
About Your NEW Kershaw Butterfly Knife
Cleaning & Oiling
Always keep your knife clean. Wipe away debris and, if needed, wash with a mild detergent and dry thoroughly. Do not let your knives sit in water. Due to the high carbon content of the quality steel in our blades, the blade may corrode if not properly cared for. To protect your knife, simply wipe a coating of Kershaw Knife Oil on the blade before storing it. We recommend using Kershaw Knife Oil.
Blade and Handle Coatings
The technologically advanced coatings on the blades and handles of some Kershaw knives are designed to add beauty to the products and to enhance specific performance features. Although Kershaw coatings are designed to stand up to continual knife use, in time, all coatings will show some wear. Scratches and other signs of wear should be expected and considered normal.
Adjusting Screws
Please use Torx bits (not an Allen wrench, which will strip the screws) to adjust screws on Kershaw knives. Most screws may be adjusted using either a T6 or T8 Torx bit, we recommend using the Kershaw TX-Tool. T6 fits pocketclip, handle, and safety-lock screws on current model knives. T8 fits the pivot screw. Some older models (prior to 2000) may require a T4. If screws on your knife are coming loose or you think the holes could be stripped, use thread locker (such as blue Loctite 243) and let it set for 24 hours before using your knife.
Sharpening
Your knife comes with FREE lifetime sharpening. Just send the knife into our Tualatin, Oregon facility, we’ll sharpen it and return it to you. You can also sharpen your knife with the Kershaw Ultra-Tek Sharpener or aftermarket sharpener that can sharpen between 20° and 22°. Follow the included instructions when using Kershaw’s Ultra-Tek Sharpener.
- Hold the blade against the Ultra-Tek at the original sharpened angle of 18°–22°.
- Beginning at the base of the blade and tip of the sharpener, pull the blade down and toward you across the top of the sharpener in a slight arc as shown in the illustration. Do the same thing across the bottom of the sharpener as shown. This sharpens the top of your blade.
- Repeat this “over and under” motion approximately three to five times on each side to fully sharpen your knife.
Opening a Kershaw Butterfly Knife
Lucha Lessons: The Rollout
It’s time for Lucha Lessons from our friend @theincrediblemattyp on Instagram! The Lucha is an excellent choice for beginner flippers, everyday use, and we recommend starting with the rollout, as demonstrated in this video.
For more Lucha Lessons, visit our YouTube playlist here.
Additional Information Regarding Automatic Knives & Butterfly Knives
If you need service for your butterfly knife, be sure to include the required release form with your knife, in addition to a warranty request form. Visit our warranty page for additional information, to read our warranty, learn about replacement vouchers, counterfeits, and more.
LIMITED LIFETIME WARRANTY
NOTE: Do not loosen or tighten any handle screws, pivot screws, or take your Kershaw automatic knife apart. This will void your warranty on this knife. Other than moving the pocketclip and/or tightening the pocketclip screws, if the knife needs service, see Additional Information Regarding Automatic Knives.
Kershaw knives from Kai USA Ltd. carry 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. The Limited Lifetime Warranty does not apply to the TX Tool, Firestarter (1019), or Kershaw Knife Oil. 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.
We reserve the right to make changes to this warranty at our discretion and without notice.
For warranty information, shipping tips, and the Warranty/Service Form required for warranty service, please visit our service and warranty webpage.
Blade replacement
If you accidentally break your Kershaw folder’s blade, we can replace it for $25. Blades that break due to a manufacturing defect will still be replaced under warranty, free of charge.
Parts replacement
Some replacement parts can be shipped to you. Please see our replacement parts webpage for shipping and warranty service information. Replacement parts are offered as a courtesy for small repairs. They are not for resale, and we reserve the right to refuse service to anyone exploiting this program.
Vouchers
There may be cases when your knife has been evaluated and is eligible for warranty service but is not able to be repaired or replaced. This can be true with discontinued models of which we no longer have stock. In such cases, at our discretion, we will offer a voucher for a replacement knife of equal or lesser value, as defined by the Manufacturer’s Suggested Retail Price (MSRP). The voucher can only be used through the Kai USA Warranty Department and some exclusions apply. If you prefer to have your original knife returned instead of using the voucher, 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 you do not call us to let us know by then, the knife will be recycled.
LIABILITY DISCLAIMER
Kershaw knives are intended and sold for legitimate everyday carry and/or sporting purposes only. The purchase, use, and ownership of knives are subject to a wide variety of federal, state, and local laws and regulations. Always comply with all laws and regulations in effect in your area. 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.
WARNING!
Knives are extremely sharp tools and should only be used or handled with the utmost care and caution. Any use other than cutting (such as prying or twisting) is considered misuse and abuse—and will void your warranty. Kershaw Knives/Kai USA Ltd. is not responsible for any injuries resulting from misuse or abuse of the product, including but not limited to injuries resulting from improper or incorrect use of pocket clips.
Do not use any Kershaw knife as a throwing knife (other than the Ion 1747BWX or Aethon 1748X throwing knives) or a stabbing device. Throwing knives and knives developed for stabbing have a distinctly different design and function. Kershaw knives are not intended for throwing or stabbing; they are designed for cutting purposes only.
We reserve the right to change shipping terms, specifications, materials, or discontinue products at any time, without notice.
Kershaw Products are covered by one or more pending and issued U.S. patents. Here is the list of past and present patents that we have utilized: 4,715,121; 4,741,106; 5,802,722; 5,815,927; 6,006,385; 6,397,476; 6,388,431; 6,412,130; 6,145,202; 6,223,372; 6,338,431; 6,378,214; 6,397,476; 6,427,334; 6,591,504; 7,086,158; 7,370,421; 7,395,599; 9,120,234; D303,748; D316,802; D317,390; D321,818; D329,185; D348,818; D351,328; D365,725; D366,605; D375,243; D392,131; D410,833; D437,197; D438,085; D450,228; D454,043; D454,768; D455,062; D467,783; D474,669; D479,104; D479,114; D484,770; D488,045; D565,918; D566,222; D569,212; D570,180; D572,542; D572,562; D575,614; D576,466.
If your Kershaw knife needs repair, please see information about the Limited Lifetime Warranty.