Caveman 7.5" Fillet Knife

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The Caveman Series 7.5" Fillet Knife is built for precision, flexibility, and rugged versatility. Forged from high-carbon stainless steel, its ultra-thin, curved blade bends effortlessly to follow bones and skin, minimizing waste while delivering clean fillets. A full-tang, triple-riveted Rosewood handle ensures control whether you’re working at the cutting board, the dock, or the campsite. With a fitted leather sheath and signature gift box, this knife is ready for kitchen prep and outdoor adventures alike.

 

Key Highlights

  • 7.5" flexible blade for clean, close-to-the-bone slicing
  • High-carbon stainless steel for sharpness, durability, and stain resistance
  • Double-bevel edge sharpened to 12° per side for smooth, precise cuts
  • ~58 HRC hardness for reliable edge retention
  • Full-tang construction with a triple-riveted Rosewood handle
  • Leather sheath included for safe storage and field use

 

Caveman 7.5 inch Fillet Knife with leather sheath on cutting board


Unboxing, Features & Demo

See the Caveman Fillet Knife in action — from its rugged Rosewood handle to its flexible, razor-sharp blade.

 

Why You’ll Love This Fillet Knife

  • Effortless filleting: the thin, flexible blade rides the rib cage and glides between skin and flesh with minimal waste
  • Boning versatility: trims silver skin, portions poultry, and cleans ribs with ease
  • Confident grip: contoured Rosewood scales and full-tang build ensure comfort and control
  • Outdoor-ready: fitted leather sheath protects the edge at camp, on the boat, or in storage

 

Triple-riveted Rosewood handle detail on Caveman Fillet Knife

Caveman Series flexible fillet knife on cutting board

 

Specifications

Series Caveman Series
Knife Type Flexible Boning / Fillet Knife
Blade Material 5Cr15MoV high-carbon stainless steel
Hardness (HRC) ~58 HRC
Edge / Bevel Double bevel, 12° per side
Tang / Construction Full tang, triple-riveted Rosewood handle
Blade Flex High — tapered spine 0.8–2.4 mm
Total Length 328 mm / 12.9"
Blade Length 198 mm / 7.8"
Blade Width 20 mm / 0.79"
Spine Thickness 0.8–2.4 mm (0.03–0.10")
Handle Length 130 mm / 5.1"
Handle Material Rosewood
Weight 151 g / 5.3 oz
Sheath Included (protective leather sheath)
Handedness Ambidextrous

 

Caveman 7.5 inch Fillet Knife specification diagram

Caveman Fillet Knife feature infographic - flexible spine, high carbon steel, Rosewood handle

 

What’s Included

  • Caveman Series 7.5" Fillet Knife
  • Leather sheath
  • Signature storage / gift box
  • Lifetime guarantee

 

Caveman Series Fillet Knife in premium gift packaging

Care & Use

  • Hand-wash with mild soap and dry immediately (do not use dishwasher)
  • Use wooden or soft plastic cutting boards; avoid glass, marble, or ceramic
  • Maintain sharpness with sharpening rods & tools or whetstones
  • 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 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 bends to follow contours closely, making tight, precise cuts while maintaining control.

 

Is it suitable for outdoor use?

Yes. The included leather sheath and signature storage/gift box make it ideal for outdoor filleting, camping, and gifting.

 

Will it rust?

The high-carbon stainless steel is stain-resistant. Hand-wash, dry promptly, and oil lightly if exposed to saltwater.

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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