The everyday carry (EDC) community is flooded with new pocket knife releases every month, making it difficult to separate marketing buzz from true manufacturing innovation. When custom knife designer Jacob Lundquist partnered with QSP to release the QSP Vault, it instantly grabbed headlines. Collectors were captivated by its sleek, classic-meets-modern aesthetic, while hard-use enthusiasts were eager to test QSP’s first-ever crossbar lock execution.
Choosing a new daily companion comes down to the fine engineering details. If you are considering adding this folder to your pocket rotation, you likely have specific questions about its steel, mechanical safety, pocket footprint, and long-term durability. To help you make an informed decision, we have compiled the ultimate QSP Vault FAQ covering everything you need to know before buying.
1. General Specifications and Materials
What are the exact dimensions of the QSP Vault?
The QSP Vault is tailored to sit comfortably in the ideal mid-sized EDC sweet spot. The physical dimensions include:
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Total Open Length: 7.50 inches (191 mm)
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Blade Length: 3.25 inches (83 mm)
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Closed Handle Length: 4.25 inches (108 mm)
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Blade Thickness: 0.12 inches (3.0 mm)
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Total Weight: 4.34 ounces (123 grams)
What steel does the QSP Vault use?
The blade is forged from Swedish Sandvik 14C28N stainless steel, heat-treated precisely by QSP to a hardness range of 59–61 HRC. Within the knife community, 14C28N is highly regarded as one of the absolute best balanced user steels. It features a fine, uniform molecular grain structure that takes an incredibly keen razor edge, boasts remarkable structural toughness against micro-chipping, and offers high corrosion resistance due to a specialized nitrogen addition in its chemistry.
What handle materials are available?
The Vault offers a beautiful aesthetic contrast by utilizing contoured, rounded anodized aluminum bolsters alongside a variety of textured handle options. Depending on the specific model variation, you can select premium canvas Micarta scales for a warm, traditional fabric-like grip, or choose high-end G10 variants infused with eye-catching copper or aluminum foil carbon inlays.
2. Lock Mechanics and Deployment Action
What is the Glyde Lock, and how does it work?
The Glyde Lock is QSP’s proprietary, custom-engineered iteration of the popular crossbar style locking mechanism. It utilizes a solid steel locking bar that passes completely through both internal steel liners of the frame.
When the blade is opened, dual internal omega-style springs automatically force this solid bar forward over the rear ramp of the blade tang, creating an incredibly secure structural wedge. This mechanism physically blocks the blade from folding back on your hand, eliminating any possibility of accidental closure during heavy-duty cutting.
Does the QSP Vault run on washers or bearings?
The QSP Vault utilizes high-grade ceramic ball bearings within the pivot assembly. This provides a completely frictionless, fluid rotation. When you pull back on the external textured Glyde Lock slider buttons, you release all lockbar tension against the blade tang. Thanks to the ceramic bearings, the blade swings entirely free, dropping shut under its own weight with a smooth hydraulic action.
Is the detent safe enough to carry in a pocket?
Yes, absolutely. A historical flaw with early crossbar locks in the knife industry was a soft, weak closed retention. QSP specifically engineered the Glyde Lock with firm, intentional spring tension. When folded, the blade is held securely inside the frame scales by a distinct closed bias. You can aggressively shake the handle frame, but the blade will stay safely tucked away until you apply deliberate manual pressure to the thumb studs.
3. Daily Carry Dynamics and Performance
How does the QSP Vault perform in real-world cutting tasks?
Designed with a versatile drop-point shape and a high flat grind, the Vault is a phenomenal everyday worker. The 3.0mm spine thickness is carried far forward toward the tip, maximizing structural integrity for heavy piercing and scoring tasks. Behind the edge, the blade measures approximately 0.6mm, balancing slicing efficiency with rugged durability. It effortlessly glides through thick cardboard, heavy ropes, industrial plastics, and zip-ties without chipping or binding.
What pocket clip style does it feature?
The knife comes equipped with a low-profile, deep-carry spring steel pocket clip. This allows the folder to sit entirely low and out of sight in your pocket, preventing it from drawing unwanted attention. The clip provides excellent spring retention, sliding over thick denim pocket seams cleanly without tearing up the fabric.
Is the QSP Vault left-hand friendly?
Yes, the QSP Vault is 100% fully ambidextrous. Because the Glyde Lock sliders can be operated equally well from either side of the frame, the blade features symmetrical dual thumb studs, and the deep-carry pocket clip can be reversed to the opposite scale, left-handed users enjoy the exact same speed, safety, and operational ergonomics as right-handed users.
Buying Checklist: Is the QSP Vault Right for You?
To summarize whether this folder aligns with your specific everyday carry requirements, review the core characteristics below:
| Choose the QSP Vault If: | Consider Alternatives If: |
| You want a completely finger-safe, drop-shut lock mechanism | You strictly prefer traditional back-locks or frame locks |
| You appreciate a modern knife with a bolstered heritage style | You only want minimalist, ultra-lightweight plastic handles |
| You need an ambidextrous tool with tough, easy-to-sharpen steel | You require a hyper-thin, razor-like food prep laser slicer |
Summary: A Masterclass in Everyday Value
The QSP Vault manages to check nearly every single box on a modern EDC enthusiast's wishlist. Jacob Lundquist’s sophisticated architectural layout elevates the knife far beyond basic utility, while QSP's superb manufacturing tolerances, crisp Glyde Lock tuning, and flawless ceramic bearing action deliver elite performance for a working-class price tag. It is a rugged, safe, and beautiful daily companion built to tackle real work for years to come.
Frequently Asked Questions (FAQ)
Do I need to disassemble the QSP Vault to clean the lock?
No deep disassembly is required for regular maintenance. If pocket lint or dust accumulates inside the Glyde Lock track, you can easily clear it out with a brief blast of compressed air or by rinsing the frame under warm running water.
Is the two-tone blade finish durable?
Yes. The machine satin finish on the main cutting bevels is very clean, while the rugged stonewash along the upper spine flats is exceptionally good at hiding the inevitable micro-scratches caused by daily utility work.
Where can I buy authentic QSP Vault models?
You can browse the full authorized selection of handle materials, blade finishes, and premium inlays directly on the QSP Vault Collection Page to secure a genuine model backed by full manufacturing support.
