Name: Cold Steel 28DD Demko AD-10 Folding Knife 3.5" S35VN Drop Point Blade, Contoured Black G10 Handles
Brand: Cold Steel Knives
SKU: CS28DD
Price: 149.95 USD
Availability: InStock
Rating: 4.8 (15 reviews)

Francisco
Florida

Feb 11, 2022

Pros: Ease of Opening, Handle Material, Blade Material, Overall Quality, Blade Sharpness

Cons: None

thanks CS x1000! .For a folder unmatched!

unmatched quality for a heavy duty, easy to carry B. A. folder..!

John C
OKC

May 27, 2024

Pros: Blade Material, Blade Sharpness, Ease of Opening, Handle Feel, Handle Material, Lock Ease of Use, Lock Type, Overall Quality, Pocket Clip, Sheath, Weight

Cons: None

Fixed blade in a folder

The AD10 is a Beast of a folding knife. It is like having a Becker BK2 in a folding knife the handle fits my hand very nicely. I have large hands with long fingers. The back of the handle is great to get leverage to do some chopping(not recommended for a folding knife). If I were to have 1 negative, is the handle is a little too smooth for a secure fit in my hand. I have the AD10 in my camping along with my Becker BK2 & BK16

Doug
Ohio

Mar 18, 2021

Pros: Ease of Opening, Blade Material, Overall Quality, Blade Sharpness

Cons: Pocket Clip

Demo AD10

This is a very beefy knife. If you like a larger knife this is most certainly one you have to have. I have several Zero Tolerance knives and this knife is every bit as good as if not better than those knives. The blade came razor sharp from the factory, I didn’t have to do any work on the blade to make it as sharp as I like my knives. S35 steel in this knife should retain its edge for a while even with heavy use. It feels good in your hand and surprisingly, for its size, it carries well in your pocket.

Dana
Tucson, Az

Nov 02, 2021

Pros: Weight, Handle Material, Blade Material, Overall Quality, Blade Sharpness

Cons: Pocket Clip

Wow

This is my new favorite folder, unseating my Zero Tolerance 0303TS. I thought it was going to be an overly large, unwieldy knife in listening to reviewers, but it really isn't. It is big, yes, but manageable. The ergonomics are exceptional, great blade/steel, extremely comfortable in the hand, design/engineering is amazing, great edge out of the box.....other than the pocket clip, I'm not sure how you could make a better knife, really. Speaking of that, I'd like to remove the clip altogether, but then the two screws stick out a bit....gonna need to grind them down a bit, or try to get replacement ones.

Tripwire
TN

Sep 26, 2025

Pros: Blade Material, Blade Sharpness, Ease of Opening, Handle Feel, Handle Material, Lock Ease of Use, Lock Type, Overall Quality, Pocket Clip, Weight

Cons: None

If you like overbuilt, tuff, and dependable. Game on!

Use it as tough as you can. It’s ready!!!

Jay R
Memphis, Tn

Sep 13, 2019

Pros: None

Cons: None

Attention Deficit-10-4

I thot that I was ordering the one with the Scorpion lock. My mind must have wandered. This is one big, honking knife. That is the only thing a even approaches being a fault. This is the EASIEST closing Triad lock, by far, that I own. The blade dropped on my finger and cut it as I was learning this fact. I believe this is the best constructed large folder that I own. And the best liked.It might be more like an EveryDayTote than an EDC. My jeans do very well holding it for me.You probably don't need one. I didn't. But I am pleased as punch that I own one now.

Fisherofmen
IN

Aug 29, 2022

Pros: Handle Material, Blade Material

Cons: None

FINE KNIFE

The only reason this is not my EDC is because for what i do, the Max Scout suits me better. I deliver propane and the Max is a great pocket machete for hacking away vines, small branches and other growth around my propane tanks; if it weren't for that, the AD10 would absolutely be my EDC. Great materials, awesome knife steel, perfect size. My only change would be more texture on the handle for better grip.

Dan
Chandler AZ

Feb 21, 2019

Pros: Weight, Ease of Opening, Handle Material, Pocket Clip, Blade Material, Overall Quality, Blade Sharpness

Cons: None

Amazing EDC

This is a well build knife. I have other cold steel knives and this is my go to knife. This is also my go to over any of my other knives for that matter. I use the AD-10 as my EDC and it replaced my Spartan as my EDC. It just fits much better in my pocket. Its really not that much smaller is size then a Spartan but it just happens to be the perfect size. As with any or most cold steel knives it came very sharp. The build quality is solid and I have not found any play between the blade and the handle. I did put a bit of oil on mine within the pivot point but I tend to do this with all of my folders. Also I trust the lock more then other brands. It makes it seem more of a fixed blade when in use. The knife opens very smooth and the lock snaps into place nicely. The lock is tight but I am just fine with that and I can still close the knife with one hand. The handle provides a nice grip and the clip is much wider then my other knives.

David
Great Falls, Mt

Mar 04, 2019

Pros: Ease of Opening, Handle Material, Pocket Clip, Blade Material, Overall Quality, Blade Sharpness

Cons: Weight

Bushcrafters will be pleased

What a great knife. I was pleasantly surprised when I discovered the knife does have a sharp spine near the blade point and by the gimping. Nobody has made this clear until now. This knife will strike a ferro rod to start a fire and looks strong enough to prepare a meal or chop off a tree branch. After just a few minutes of opening & closing the blade drops freely when released.

Rob
, Liberty Lake, Wash

Apr 10, 2021

Pros: Handle Material, Blade Material, Overall Quality, Blade Sharpness

Cons: Pocket Clip

A Beast

Just received my AD10 today and I can’t put it down. What a chunk of steal. Seen a lot reviews before I bought it knowing the knife was “large”. Still didn’t prepare me for how much of a tank it actually is. Knife is razor sharp as my finger found out when engaging the lockback. My hands are medium to large and still takes a little practice w one handed opening. Love the textured G10. Feels darn good ergonomically..I don’t think you can get any closer to a fixed blade that is a folder in my book. Pocket clip is horrible. Can barely clip it on my jeans without a battle. Small price to pay...darn glad I made the purchase

Bertie
Kansas City

May 12, 2026

Pros: Blade Sharpness, Ease of Opening, Handle Feel, Handle Material, Lock Ease of Use, Lock Type, Overall Quality, Weight

Cons: Pocket Clip

Beefy In The Best Way

This knife feels incredibly good in the hand, if you've got small hands, however it might feel a bit large and heavy. The handle is very comfortable and the blade deploys easily. New out of the box to close the knife it takes a little persuading but once it breaks in it'll drop right down. My only complaint is how much of the handle sticks out of the pocket; it's about an inch. Overall, it's a great knife and one of my favorites.

Blade 14
Atlanta, GA

May 15, 2026

Pros: Blade Material, Blade Sharpness, Ease of Opening, Handle Feel, Handle Material, Lock Ease of Use, Lock Type, Overall Quality, Sheath, Weight

Cons: None

Hard use EDC blade

Pros: sharp, ridiculously solid lockup, very comfortable handle, weighty (in a good way), smooth pivot Cons: pocket clip is a little bit tight

Ben
California

Feb 14, 2019

Pros: Ease of Opening, Handle Material, Blade Material, Blade Sharpness

Cons: Pocket Clip

I know Cold Steel could have done better

I haven't been so excited about a new folder in a long time (First knife I've bought with out reviews, but I had to have it). I measured the blade length at 3 9/16" from where the handle scales end to the tip. Cold Steel's website says 4". I prefer the shorter blade, but some people will probably want the 4" as described. I know Cold Steel could have done better because I've seen them do better on the rest of their knives that I own. Finger prints were all over the blade (Not sure if that happened at Knife Center or USPS, but I know it wasn't from a QC person). My AD 10 had some knicks and loose burrs inside the liners (Neglect by the manufacturer, couple shots of compressed air would have resolved the burrs). 0.5mm knick on the back of the lock bar (I know that sounds picky but if I buy something NEW then all knicks or scratches should come from my use). This is the ONLY Cold Steel I've ever received with lateral blade play straight out the box (Slight turn of the pivot screw resolved it, but that probably voided the warranty). Wish there was a full sized forward finger choil like the American Lawman but that would change the design/appearance. The pocket clip... well... it's a Cold Steel... as usual, the tip is too low to easily slide into jean pockets, and after all these years they will probably never fix that. Action is very smooth. Lock bar is easy to disengage in comparison to most of Cold Steel's folders. Lockup is rock solid as expected with zero vertical blade play The handle reminds me of the Ultimate Hunter (slight texture on contoured G10, solid lockdown in hand, very comfortable). Blade came razor sharp (I shaved my face with it). Blade finish is beautiful (nice contrast with the grinds). Overall a great value. This is a sexy beast of a folder as we've come to expect from Cold Steel, but this one is sexier and beastlier than most.

Gunsmoke
Tucson, Az.

Apr 04, 2021

Pros: Weight, Ease of Opening, Handle Material, Blade Material

Cons: Pocket Clip

I've Had Many Cold Steel Knives

I like C.S. Knives and i'Ve owned many over the years. I use them during camping for fire starting and cutting small wood. The blade is strong and can handle a batton without breaking the spine. Recently I used it to cut Sod I installed on my back yard, now the blade needs to be sharpened. The only drawback is the length of the pocket clip, I would prefer it a little longer.

Dana
Tucson, Az

Nov 08, 2024

Pros: Blade Material, Blade Sharpness, Handle Feel, Lock Type, Overall Quality

Cons: None

Pretty good knife

This thing is pretty robust and a very stout blade - but while that is a benefit in some cases, it's not the greatest for cutting things and doing outdoorsy tasks like whittling and making feather sticks. It's about as good as a Benchmade Bushcrafter in that regard (and that knife sucks for that stuff out of the box). Accidentally hit the blade on a plate when cutting a carrot and got a small flat spot, but was easy to fix with a ceramic rod. If I'm hiking into mountain lion territory here in southern AZ, I tend to have this in my pocket (and a SAK RangerGrip 78 in my pack for doing actual cutting/sawing).