Caveman 7.5" Fillet Knife

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Seido's Caveman 7.5-inch Fillet Knife features a flexible, high-carbon stainless steel blade designed for precise, close-to-the-bone slicing. Its ultra-thin, curved blade adapts easily to movements, enabling smooth skinning and deboning. The full-tang, triple-riveted Rosewood handle ensures a secure grip whether working at the cutting board, dock, or campsite. Included is a protective leather sheath, making it ideal for both kitchen duty and outdoor filleting tasks.

 

  • 7.5" flexible blade for precise fish filleting and fine trimming
  • High‑carbon stainless steel — sharp, durable, and stain‑resistant
  • Double‑bevel edge — 12° per side for smooth, low‑resistance slicing
  • ~58 HRC hardness for dependable edge retention
  • Full‑tang construction with triple‑riveted Rosewood handle
  • Leather sheath included for safe storage and field use
SEIDO Caveman 7.5 inch Fillet Knife with leather sheath on cutting board

Why You’ll Love It

  • Effortless filleting: the thin, flexible spine rides the rib cage and glides between skin and flesh to minimize waste.
  • Boning‑knife versatility: trims silver skin, portions poultry, and cleans ribs with finesse when a stiff chef knife feels clumsy.
  • Confident grip: contoured Rosewood scales and a full‑tang build deliver comfort and control during long prep sessions.
  • Outdoor‑ready: leather sheath protects the razor edge in a tackle box or on a camp trip.
Full‑tang, triple‑riveted Rosewood handle detail on SEIDO Caveman Fillet Knife

Unboxing & Features

 

 

Specifications

Blade length 7.5 in (190 mm)
Overall length 12.95 in / 329 mm
Blade height (max) 0.71 / 18 mm
Spine thickness 0.04 in / 1 mm (thin, flexible)
Handle length 5.47 in / 139 mm
Weight 500g w/o Sheath
Steel High‑carbon stainless steel
Hardness ~58 HRC
Edge / Bevel Double‑bevel, 12° per side
Construction Full tang; triple‑riveted Rosewood handle
Sheath Leather, belt‑loop compatible

SEIDO Caveman flexible fillet knife lying on a cutting board

Caveman Fillet Knife feature callouts: flexible spine, high‑carbon stainless steel, razor edge, full tang, Rosewood handle

 

What's Included

  • SEIDO Caveman 7.5" Fillet Knife
  • Leather sheath
  • Signature storage / gift box

 

Care & Use

  • Hand‑wash and dry immediately; do not place in the dishwasher.
  • Use a wooden or soft plastic board; avoid glass, marble, or ceramic.
  • Hone regularly; sharpen as needed to maintain the 12° edge.
  • Avoid prying or twisting—this flexible blade is engineered for slicing precision.
  • Oil lightly if storing long‑term or after saltwater use; store safely in the sheath.

 

FAQ

Is this a fillet knife or a boning knife?

It’s a flexible fillet knife optimized for fish, but it also handles boning tasks like trimming fat, removing silver skin, and breaking down poultry.

 

How flexible is the blade?

The thin, high‑carbon stainless steel blade is designed to bend and follow contours for tight, precise cuts while maintaining control.

 

Is it suitable for outdoor use?

Yes. The included leather sheath and signature storage/gift box make it ready for travel, gifting, and field filleting.

 

The 7.5-inch Fillet Knife is a professional, high‑carbon stainless steel flexible fillet knife with a full‑tang, triple‑riveted Rosewood handle and protective leather sheath—your go‑to for clean fish fillets, precision boning, and outdoor filleting.

Free Shipping

Shipping to contiguous United States & Canada is FREE! We understand that quality kitchen tools are a much needed investment and we don't want you spending any more then you need to. (PO box not accepted)


We try our best to keep shipping costs as low as possible, however shipping charges may apply to international countries.


Shipping Time

USA/Canada: Free shipping takes between 3-5 business days. Deliveries are usually quicker with domestic shipping available for most products.


 2-day Express Shipping also available.


Worldwide: Standard 7-15 business days.


Business days are Monday to Friday; holidays and weekends are not included in delivery time.


After purchasing, our team will process your order within 1 business day.


Don't hesitate to message us if you have any questions or concerns regarding your order.


We do not ship to PO boxesPlease see our shipping policy for more info.

We accept returns. We have a 30-day no-hassle money back guarantee return policy (please see our return policy for more details). Which means you have 30 days after receiving your item to request a return. 


If you aren't completely satisfied with your product(s), please reach out to our customer service team and we'll try our best to resolve the issue. To be eligible for a return, your item must be unused and in the same condition that you received it. 


Contact us at support@seidoknives.com or by chat. See our return policy for more details.

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Frequently Asked Questions

Q. Is Shipping Free? Yes!

Yes, U.S. & Canada Shipping is free! We understand that a good kitchen knife set is a much needed investment and we don't want you spending any more then you need to. Shipping charges may apply to all other international countries.

Q. Will I receive a confirmation email once I order? Yes!

Yes! You will get a confirmation email after you have placed your order, and another when your order is dispatched (and by SMS if you opt-in). If you haven't received any emails from us, please check your spam folder. If you entered an incorrect email address, please use the chat or contact page to reach our support team so we can make the correction.

Q. Is there a 30-day money back guarantee? Yes!

We are incredibly confident that you will like our products that we offer a 30-day money-back; satisfaction guaranteed. If you are not 100% satisfied with your purchase, reach out to our customer support team and we will provide you with a refund and schedule your return.

Q. How does the lifetime warranty work?

We’re perfectly confident in the product we’ve made, this is why we provide a ‘no-questions-asked’ return policy. In addition to our 30 days no-risk money back guarantee, we also offer a FREE limited lifetime warranty against manufacturing defects in material and construction, and to perform as advertised when properly used and maintained.


We take great pride in our products and therefore we only tolerate excellency - nothing less. Please contact us and we will gladly schedule a return and issue a replacement if there are quality issue with the knives.

Q. Are your knives made by Japanese Blacksmiths? Yes!

Our artisan knives are traditionally crafted by our expert blacksmiths with a combined 100 years of experience. We only use premium materials. Our Damascus knives are forged using premium high-carbon VG-10 or AUS-10 steel. Each knife is meticulously handcrafted. We've served over 100,000 happy customers worldwide. We always offer unparalleled quality without compromise.

Q. Can I track my order? Yes!

Once your order is processed, you'll be sent an email (and SMS if you opt-in) with a tracking number. You can then track your order by clicking the link recieved or directly through our website on the "Track My Order" page.

Q. How can you offer high-quality products at a fair price?

Our fundamental principles are quality and loyalty to our customers without exception. Our competitive pricing is due to the fact that we are true to our customers; we cut out the bloat caused by the middleman and sell directly to you! That means you get premium, high-quality products, at a fair and honest price (Psst... And they last a lifetime).

Q. How can I pay for my order?

We accepted all major credit cards or digital wallets, such as: Visa, Mastercard, American Express, PayPal, Shop Pay, Apple Pay and Google Pay. We also accept installments by AfterPay; 4-interest-free payments. Learn more here.

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