HEAdesigns Equilibrium V2 Flipper Knife 3.5" M390 Two-Tone Blade, Gray Titanium Handles

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Part #: HEAEQV2GY | HEAdesigns
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HEAEQV2GY: Equilibrium Folding Knife V2 Titanium, Gray


From Sam, the man behind everything at HEAdesigns:

The one that started it all - redone from the ground up!

The Equilibrium and I have had a long friendship. Over four years ago, it was the design I started with and said to myself as I often talk to myself when designing – well if there was only one concept you can try – what would it be? The EQ is a commitment of sorts to a design concept. The first EQ had a very unique profile. Beautiful lines that complimented the extremely useful blade shape. This worked well when paired with a handle that almost mirrored the blade, yet provided excellent ergonomics. I was very happy with how the first EQ came out and to this date, I still am honored to have been able to share the idea with our community.

Time passed and I grew a bit, learned a few things, and started to get curious again. What would happen if I took the concept I first started with and revisited it? People loved the EQ and really enjoyed it for all its unique features – how can I re-think it and do it completely differently without having it lose its connection to the original? This was tough, but designing different is what we like to do!

Over the next few months, I jotted things down about the EQ that I would have loved to see in a second version. Not an update, or a refresh, or some small tweaks, but a stand-alone version that allowed for both models to coexist as part of any collection.

The first thing that came to me was size – the first EQ's blade was an elegant beast at a slender yet long 3.9 inches. This version had to be smaller – the perfect size to bring it down after tons of sketching was 3.5 inches. This would allow for the blade to be extraordinarily easy to EDC and even carry in the same pocket with a phone and keys given its slender profile. The blade on the EQ V2 would need to be reworked in order to really bring out a different face to the blade. Adding in a stylized groove, hollow grinding the blade, completely redesigning the flipper, and lining up the swedge flush with its harpoon would make for a very different stance when the blade was open and a new feel when opening the blade.

But that wasn’t enough - I knew we had to do this one up in m390. A steel of which has many premium properties (hardness, corrosion resistance, and toughness) that lends itself to being one of the best all-around steels that can be found. I also knew that I wanted to do a backspacer – something that complemented the new profile. A tapered mill line (that's becoming a signature of sorts) with a floating backspacer was a perfect touch of class to add to the back end of the blade (sometimes you have to add class to the… well you get the picture). The clip had to be true to the original, yet shrunken down to flow with the new footprint of the overall design.

Lastly, and probably what I spend the most time on was refining the handle. The handle had to be perfect. The shape had to take the ergonomics from the first EQ and carry them out with precision to the new size. After a lot of 3D printing and prototyping, we landed it! It was very exciting to see the unique shape translate well to the newer size. This time around, I wanted to give the community more options. Two versions instead of one. The frame lock was a classic and it needed to be represented with new cutouts, relief cuts, and skeletonizing. It would feel like an entirely new creation. But to do something different with the other version was a challenge. There were so many directions it could go. I settled on a bolster lock as it would force me to do something new and challenging. How can I fit a bolster lock on a blade that is comprised of almost no straight lines? Back to the sketches, I went to try to find something that fits. When I was done, I saw only one option that made sense to me. The bolster region would have to be a complete circle. This would mean that nearly the entire handle would be covered by the scale material – something that I never saw before. We had to do it! Making the bolster fit out of an integrated frame with a steel lock insert, lock bar cutout and skeletonization was a real challenge but the results were the lightest and slickest EQ yet. By approaching the two versions of the EQ V2 from very different angles the final product was two knives cut from the same cloth (pun intended) but with very different souls. As with the first EQ, I’m very excited to be sharing this one with our community.

It is my pleasure to be launching these two versions side by side. Every blade will come with the full HEA works in terms of packaging and presentation so be ready for some stickers and a fitted case. Every HEA model so far has been a very limited run – the EQ V2 is no different. There are only 150 of each version and as a new surprise and after lots of feedback, every blade will be shipping with a birthday card letting you know which number of the 150 your blade is!


  • Blade
  • M390 stainless steel, 3.5" blade length stunningly hollow ground from 0.125" stock
  • An all-new profile for the primary grind and a new swedge style
  • Two-tone ceramic bead blast with a hand sanded satin flat finish
  • Symmetrical half depth speed groove for a very cool stance and lightened blade
  • Newly designed flipper tab that adds not only to the symmetrical aesthetic – but also provides a lower profile and easier actuating motion
  • The action on this one is so dialed in – it flips like a dream!
  • Handle
  • Integrated Bolster lock made of 6Al4V Aircraft Grade Titanium starting at a 0.20" and heavily contoured and milled down to 0.10" in thickness
  • 4.90" long by 1.10" wide - making it the most compact EQ yet and near unnoticeable in the pocket!
  • Machined thumb relief, hidden steel lock insert, integrated over travel stop, multi-row ceramic bearings, and ceramic detent
  • Both frames are fully scalloped from the inside to reduce the weight even further
  • HEA micro texture adds to the tactility and understated styling of the all Ti versions
  • A new lock bar relief adds to the personality making for an even more cohesive design package
  • Hawdware & Clip
  • 6Al4V Ti hardware, clip, and backspacer
  • Custom HEA pivot with mirrored AEH on the back with standard torx accommodations
  • Blind screwed, newly sized clip to match the dimensions of the new handle
  • Sick all new floating and rounded backspacer to really set off the design with a signature HEA tapered v milling down the back
  • All anodized in a matching pattern to make the design package feel complete!


  • Blade Length: 3.50"
  • Cutting Edge: 3.50"
  • Closed Length: 4.90"
  • Overall Length: 8.50"
  • Blade Material: Bohler M390 Stainless Steel
  • Blade Thickness: 0.125"
  • Blade Style: Trailing Point
  • Blade Grind: Flat
  • Blade Finish: Two-Tone
  • Handle Material: Gray 3D Milled Titanium
  • Handle Thickness: 0.55"
  • Locking Mechanism: Frame
  • Pivot Assembly: Multi-Row Ceramic Bearings
  • Pocket Clip: Blue Titanium (Tip-Up, Right Carry)
  • Weight: 4.2 oz.
  • Designer: Sam Abdelrahman
  • Made in the USA
Titanium Handles
Titanium Handles A nonferrous metal, it's prized for its high strength to weight ratio and is often used on higher end knives.
Pocket Clip
Pocket Clip Includes a pocket clip for easy accessibility and a more secure carry.
Frame Lock
Frame Lock Developed by Chris Reeve, it functions like a liner lock but the lock is comprised of one of the handle scales. It's an extremely strong and easy to manipulate lock.
M390 Powdered metal developed for knife blades which provides good corrosion resistance and very high hardness for excellent wear resistance during hard use cutting.
Semi-Custom Semi-Custom or Mid-Tech knives are knives produced by a process in which the designer has more direct--but not complete--involvement; parts of these knives may still have been made by others.
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