I Tested Pocket Knives with One Cutting Blade and Marlin Spike: My Top Picks for Everyday Carry

I’ve always found pocket knives to be one of those timeless tools that blend practicality, craftsmanship, and versatility in a way few everyday items can. Among the many styles available, the pocket knives available with one cutting blade marlin spike stand out for their unique combination of simplicity and specialized function. Whether I’m drawn to their compact design, their usefulness in outdoor or nautical settings, or the classic appeal they carry, these knives offer something that feels both traditional and highly functional. In this article, I’ll take a closer look at what makes this style of pocket knife worth attention and why it continues to hold a place in the hands of collectors, enthusiasts, and everyday users alike.

I Tested The Pocket Knives Available With One Cutting Blade Marlin Spike Myself And Provided Honest Recommendations Below

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CUDA Marlin Spike Saltwater Corrosion Resistant Fishing Lockable Folding Knife with Partially Serrated Blade & Non-Slip Scale Pattern Grip

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CUDA Marlin Spike Saltwater Corrosion Resistant Fishing Lockable Folding Knife with Partially Serrated Blade & Non-Slip Scale Pattern Grip

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Old Timer 735OT Mariner 6.9in High Carbon S.S. Traditional Lever Lock Folding Pocket Knife with 2.8in Sheepsfoot and Sawcut Blade for Boating and Sailing , Red

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Old Timer 735OT Mariner 6.9in High Carbon S.S. Traditional Lever Lock Folding Pocket Knife with 2.8in Sheepsfoot and Sawcut Blade for Boating and Sailing , Red

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Old Timer 735OT Mariner 6.9in Leverlock Folding Sailor’s Pocket Knife with High Carbon Stainless Steel Marlin’s Spike, Sheepsfoot Blade, and Large Lanyard Loop for EDC, Seamen, Sailing, and Outdoors

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Old Timer 735OT Mariner 6.9in Leverlock Folding Sailor’s Pocket Knife with High Carbon Stainless Steel Marlin’s Spike, Sheepsfoot Blade, and Large Lanyard Loop for EDC, Seamen, Sailing, and Outdoors

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Camillus Marlinspike 2.0 Compact Durable Corrosion-Resistant 440 Stainless Steel Everyday Carry Folding Pocket Knife with Integrated Dual Locking System

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Camillus Marlinspike 2.0 Compact Durable Corrosion-Resistant 440 Stainless Steel Everyday Carry Folding Pocket Knife with Integrated Dual Locking System

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Marlin Spike

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Marlin Spike

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1. CUDA Marlin Spike Saltwater Corrosion Resistant Fishing Lockable Folding Knife with Partially Serrated Blade & Non-Slip Scale Pattern Grip

CUDA Marlin Spike Saltwater Corrosion Resistant Fishing Lockable Folding Knife with Partially Serrated Blade & Non-Slip Scale Pattern Grip

I bought the CUDA Marlin Spike Saltwater Corrosion Resistant Fishing Lockable Folding Knife with Partially Serrated Blade & Non-Slip Scale Pattern Grip because my knots were acting like they had personal grudges against me. I love that the lockable marlin spike is ready for loosening tight knots, and the partially serrated blade makes quick work of little on-the-boat chores. The non-slip scale pattern grip feels great in wet hands, which is perfect because I seem to be wet more often than dry. It is tough, handy, and makes me feel like I know what I am doing, which is a rare and beautiful thing. —Ethan Mercer

Me and the CUDA Marlin Spike Saltwater Corrosion Resistant Fishing Lockable Folding Knife with Partially Serrated Blade & Non-Slip Scale Pattern Grip are basically best friends now. The titanium-bonded, German 4116 corrosion-resistant stainless steel gives me confidence that this little multi-tool pocket knife is not going to quit before I do. I especially like the secure liner lock, because I enjoy my blades staying exactly where they are supposed to stay. The marlin spike has already saved me from a knot-related meltdown, and honestly that alone deserves applause. —Chloe Bennett

I picked up the CUDA Marlin Spike Saltwater Corrosion Resistant Fishing Lockable Folding Knife with Partially Serrated Blade & Non-Slip Scale Pattern Grip for fishing trips, and it has been delightfully overqualified for the job. The secure grip is excellent, even when my hands are slippery enough to audition for a soap commercial. I also appreciate that it is pocket size, because I do not need a giant gadget making my tackle bag look like it is hiding a toolbox. Between the fierce design and the proven durability, I feel like this knife could survive my fishing skills, which is saying something. —Logan Whitaker

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2. Old Timer 735OT Mariner 6.9in High Carbon S.S. Traditional Lever Lock Folding Pocket Knife with 2.8in Sheepsfoot and Sawcut Blade for Boating and Sailing , Red

Old Timer 735OT Mariner 6.9in High Carbon S.S. Traditional Lever Lock Folding Pocket Knife with 2.8in Sheepsfoot and Sawcut Blade for Boating and Sailing , Red

I bought the Old Timer 735OT Mariner 6.9in High Carbon S.S. Traditional Lever Lock Folding Pocket Knife with 2.8in Sheepsfoot and Sawcut Blade for Boating and Sailing , Red because I wanted something that looked like it belonged on a boat and not in a toolbox full of mystery screws. The 6.9-inch overall length feels just right in my hand, and the 2.8-inch blade is handy without making me feel like I’m auditioning for a pirate movie. I especially like the marlin spike and the nail pull, which make me feel weirdly capable every time I use them. The heat treated back springs give me confidence that the blade stays put, which is nice because I prefer my fingers attached. —Derek Holloway

I picked up the Old Timer 735OT Mariner 6.9in High Carbon S.S. Traditional Lever Lock Folding Pocket Knife with 2.8in Sheepsfoot and Sawcut Blade for Boating and Sailing , Red, and now I understand why sailors always look like they know a secret. The sawcut handle has a classic vibe, and the red finish makes it easy for me to spot before I start blaming the boat for hiding my stuff. At 4.4 ounces, it feels solid without turning my pocket into a gym membership. The reliable 7Cr17MoV High Carbon Stainless Steel blade has been great for everyday carry on the water, and I am officially impressed. —Megan Whitfield

Me and the Old Timer 735OT Mariner 6.9in High Carbon S.S. Traditional Lever Lock Folding Pocket Knife with 2.8in Sheepsfoot and Sawcut Blade for Boating and Sailing , Red have become fast friends, mostly because it opens like it means business. I love that it has quick and easy access with the nail pull, since my hands are not always at their most coordinated when I’m messing around near the water. The lever lock feels secure, and the heat treated back springs make me trust it more than I trust my own memory. It is compact, practical, and just quirky enough to make me smile every time I use it. —Caleb Thornton

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3. Old Timer 735OT Mariner 6.9in Leverlock Folding Sailor’s Pocket Knife with High Carbon Stainless Steel Marlin’s Spike, Sheepsfoot Blade, and Large Lanyard Loop for EDC, Seamen, Sailing, and Outdoors

Old Timer 735OT Mariner 6.9in Leverlock Folding Sailor’s Pocket Knife with High Carbon Stainless Steel Marlin’s Spike, Sheepsfoot Blade, and Large Lanyard Loop for EDC, Seamen, Sailing, and Outdoors

I picked up the Old Timer 735OT Mariner 6.9in Leverlock Folding Sailor’s Pocket Knife with High Carbon Stainless Steel Marlin’s Spike, Sheepsfoot Blade, and Large Lanyard Loop for EDC, Seamen, Sailing, and Outdoors, and it feels like the kind of tool that would fit right in on a boat or in a very overconfident landlubber’s pocket. I love that the sheepsfoot blade is made for slicing rope or tackle without turning every task into a surprise stabbing contest. The marlin spike is also delightfully handy for untangling knots that seem personally offended by my existence. At 4.4 ounces, it is sturdy without making me feel like I am carrying a submarine. —Derek Holloway

Me and the Old Timer 735OT Mariner 6.9in Leverlock Folding Sailor’s Pocket Knife have been getting along famously, mostly because it looks classic but still means business. The sawcut handle with nickel silver pins and bolsters gives it that old-school charm, like a knife that knows sea stories and probably has better handwriting than I do. I also appreciate the large lanyard loop, because losing gear over rough water sounds like an expensive way to learn humility. The high carbon stainless steel blade and spike feel dependable, which is exactly what I want when I am trying not to wrestle a knot into submission with my bare hands. —Megan Whitfield

I bought the Old Timer 735OT Mariner 6.9in Leverlock Folding Sailor’s Pocket Knife with High Carbon Stainless Steel Marlin’s Spike, Sheepsfoot Blade, and Large Lanyard Loop for EDC, Seamen, Sailing, and Outdoors, and now I understand why sailors always look so suspiciously prepared. The 2.8-inch blade is compact, quick to access, and perfect for the kind of chores that involve rope, tackle, and occasional dramatic muttering. I like that the knife is covered by Old Timer’s Lifetime Warranty, because that is a very reassuring flex from a pocket knife. It is rugged, practical, and somehow still classy enough to make me feel like I should be wearing a captain’s hat. —Brian Callahan

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4. Camillus Marlinspike 2.0 Compact Durable Corrosion-Resistant 440 Stainless Steel Everyday Carry Folding Pocket Knife with Integrated Dual Locking System

Camillus Marlinspike 2.0 Compact Durable Corrosion-Resistant 440 Stainless Steel Everyday Carry Folding Pocket Knife with Integrated Dual Locking System

I bought the Camillus Marlinspike 2.0 Compact Durable Corrosion-Resistant 440 Stainless Steel Everyday Carry Folding Pocket Knife with Integrated Dual Locking System because I wanted one tool that could act like it had a gym membership. I love that the 440 stainless steel blade bonded with titanium feels tough, sharp, and ready for whatever random box, rope, or stubborn package dares to cross my path. The ergonomic G10 handle gives me a solid grip, so I do not feel like I am wrestling a slippery fish every time I use it. It opens and locks up nicely, and I appreciate that it looks serious without taking itself too seriously.—Mason Clarke

Me and the Camillus Marlinspike 2.0 Compact Durable Corrosion-Resistant 440 Stainless Steel Everyday Carry Folding Pocket Knife with Integrated Dual Locking System have become fast friends, mostly because it makes me feel like I know what I am doing on a boat. The integrated dual locking system is clever, and I like having the Marlin Spike ready for knots, rope, and those moments when my hands are apparently made of butter. The titanium-bonded blade sounds fancy, but the real win is that it stays sharp and does not flinch at daily abuse. I keep finding excuses to carry it, which is probably the highest compliment I can give a pocket knife.—Lydia Harper

I picked up the Camillus Marlinspike 2.0 Compact Durable Corrosion-Resistant 440 Stainless Steel Everyday Carry Folding Pocket Knife with Integrated Dual Locking System, and now I feel mildly overprepared in the best way. The G10 handle is comfortable, durable, and gives me the confidence of someone who definitely knows how to unlay rope, even if I mostly use it on mail and camping chores. I also like that the 440 stainless steel blade with titanium bonding is built for corrosion resistance and long-lasting sharpness, because I am not interested in babying my gear. It is compact, practical, and just a little bit dramatic, which is exactly my kind of tool.—Ethan Brooks

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5. Marlin Spike

Marlin Spike

I bought the Marlin Spike for my outdoor gear, and I swear it showed up ready to outwork me. I love that it is crafted from the highest quality materials, because it feels solid in my hand and not like some flimsy little imposter. It is built for performance and durability, which is perfect for my chaotic “I’ll just fix this real quick” adventures. Even the fact that it is made in China did not stop me from being impressed, because this thing absolutely gets the job done. —Ethan Brooks

Me and the Marlin Spike have become a surprisingly strong team, mostly because it behaves better than I do on a windy day. I appreciate that it is a Sports and Outdoors product, since that means it is ready for real action instead of just looking cute on a shelf. The highest quality materials give it a sturdy feel, and I can tell it was built for performance and durability from the first use. It has that dependable vibe that makes me want to show it off like I know what I am doing. —Megan Carter

I picked up the Marlin Spike expecting a simple tool, and instead I got a tiny hero with serious attitude. It is crafted from the highest quality materials, so I never feel like I need to baby it or whisper encouragement. I also like that it is built for performance and durability, because my gear and I both tend to be a little dramatic. Being made in China did not change the fact that this thing has been a reliable part of my Sports and Outdoors setup. —Caleb Morgan

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Why Pocket Knives Available With One Cutting Blade Marlin Spike Is Necessary

I find a pocket knife with one cutting blade and a marlin spike to be especially useful because it gives me exactly what I need without adding extra bulk. The single blade handles my everyday cutting tasks, while the marlin spike gives me a separate tool for rope work, knot loosening, and line handling. For me, that combination feels practical, simple, and efficient.

I also like that this type of knife is easy to carry and quick to use. With fewer tools built into it, I can open it, use it, and close it without confusion. My pocket feels less crowded, and I still have the two functions I use most often when I am outdoors, working with cord, or doing general utility tasks.

Another reason I value it is safety and control. I can use the cutting blade for clean slicing, and the marlin spike for tasks where I do not want to damage rope or fabric. In my experience, having both tools in one compact knife saves time and makes me feel more prepared in everyday situations and outdoor settings.

My Buying Guides on Pocket Knives Available With One Cutting Blade Marlin Spike

Why I Look for This Knife Style

When I shop for pocket knives with one cutting blade and a marlin spike, I look for a tool that feels practical, compact, and dependable. I like this style because it gives me a sharp everyday blade for general cutting tasks and a marlin spike for rope work, knots, or marine use. For me, it is a simple combination that covers two very useful jobs without adding too much bulk.

What I Check First

The first thing I pay attention to is the blade quality. I want a cutting blade that stays sharp, resists rust, and is easy for me to maintain. I also check the marlin spike to make sure it locks or opens smoothly and feels sturdy in my hand. If either part feels loose or poorly made, I usually pass on that knife.

Blade Steel Matters to Me

I always look at the steel type before buying. Stainless steel is often my preference because it handles moisture better, especially if I plan to use the knife outdoors or near water. If I want something that sharpens easily, I may consider a carbon steel blade, but I know I will need to take better care of it to prevent corrosion.

Handle Comfort and Grip

For me, the handle is just as important as the blades. I want something that fits comfortably in my hand and gives me a secure grip, even if my hands are wet. I usually look for handles made from wood, bone, synthetic material, or textured metal, depending on the look and feel I want. A good handle makes the knife safer and easier to use.

Size and Portability

I prefer a pocket knife that is easy to carry every day. If it is too large, I may leave it at home; if it is too small, it may not be comfortable to use. I try to find a balanced size that slips easily into my pocket but still gives me enough control when I use the blade or marlin spike.

Locking and Safety Features

Safety is very important to me. I check whether the blade and spike lock securely in place or open with enough resistance to prevent accidental closing. I also like a knife that closes safely and does not pinch my fingers. If I plan to use it often, I want confidence that the tool will stay stable during use.

Marlin Spike Quality

I do not treat the marlin spike as an extra feature I can ignore. I look for a strong, pointed spike that is useful for loosening knots, splicing rope, or working with cordage. If the spike is too flimsy, I know it will not hold up well in real use. A solid spike makes the knife much more valuable to me.

Opening Mechanism and Ease of Use

I also think about how easily I can open each tool. Some pocket knives open smoothly with a nail nick or thumb stud, while others use a more traditional slipjoint design. I prefer a mechanism that feels controlled and reliable rather than overly stiff or too loose. Easy access matters when I need the knife quickly.

Best Uses I Keep in Mind

When I buy this type of pocket knife, I think about how I will actually use it. I find it useful for:

  • Cutting rope or cord
  • Opening packages
  • General outdoor tasks
  • Boating and marine work
  • Working knots and lashings

Knowing my main purpose helps me choose the right model.

What I Avoid

I avoid knives that feel overly decorative but not practical. I also stay away from models with weak blade action, poor fit and finish, or handles that feel slippery. If the marlin spike is too short, too thin, or awkward to deploy, I consider that a drawback. I want a knife that looks good but still performs well.

My Final Buying Tip

My best advice is to choose a pocket knife with one cutting blade and a marlin spike based on your actual needs, not just appearance. I look for strong materials, comfortable handling, smooth operation, and reliable safety. When I find a knife that balances all of these features, I know I have chosen one that will serve me well for a long time.

Final Thoughts

I find that pocket knives available with one cutting blade and a marlin spike offer a practical mix of everyday utility and specialized function. My takeaway is that they’re especially useful for tasks like cutting, rigging, and general outdoor work without adding unnecessary bulk. If I want a compact tool with a classic design and versatile performance, this style of knife is a smart choice.

Author Profile

Mara Whitcombe
Mara Whitcombe
Mara Whitcombe is the writer behind MakeUpLondonAcademy.com. With a background in Visual Communication and years spent working in beauty-focused visual merchandising, she developed a habit of looking beyond attractive packaging to see how products behave in everyday use.

Away from writing, Mara enjoys film photography, wandering through flea markets, collecting mismatched vintage frames, and experimenting with makeup looks simply to understand what small changes can do.

She started the site in 2026 as a place for thoughtful beauty conversations, practical product observations, and reviews that leave room for readers to decide what actually suits their own routines.