A sealed ball-bearing technology based off the operational characteristics of a thrust bearing. This thrust bearing technology is widely used, from motorsports to automation, but never before in knives.
Our ORB has many advantages over other advanced pivot mechanisms: dirt and pocket lint cannot impede the track of these rollers, they’re encased. The ball-bearing system tightens the tolerances-in and around the pivot of the folding knife, as a result the lock-up is vault tight, yet the rollers allow for almost effortless rotation.The lack of ‘play’ at any point on the rotational axis of the blade is truly unlike anything currently being made at this price point in the United States. All of these advantages are afforded simply by placing the ORB at the center of each of our designs, and expanding on it.
A single thread weaves its way through every corner of the knife industry: the desire to be original. To author some form, to create something unique and memorable lives at the desk of every designer throughout our profession.
Our signature, at the present point on our timeline is the Tri-Spoke Pivot® Assembly. At the heart of the Tri-Spoke Pivot assembly is the T10 Torx slot, but the science around the perimeter is what’s most interesting. By engineering our own unique hardware and implementing the component as an oversized pivot, we allow our folding knives to distribute the force of assembly over a larger area, allowing the knife to pivot at the same speed throughout its smooth rotation. The results are stunning to say the least.
“Less is more” Engineering Philosophy
Many of our later designs incorporate an unlikely component; Chain Ring Bolts. Yes, Chain Ring Bolts as used in the Tour De France and the X-Games. Any bicycle with multiple gears, really.
The use of chain ring bolts affords QTRM5TR Knife users many advantages: The ability to feed 550 cord THROUGH the center of the screw, this results in a much cleaner look for your lanyard. The female portion of the screw assembly acts as a stand-off naturally, it’s large and can do the job of 2-3 strategically placed traditional knife screws. Often, when chain ring bolts are found to be the best solution for a particular design, only one or two are even needed. The use of the bolts simplifies the construction of the knife itself. It has led us to a philosophy in design/engineering that “Less is More.”
QTRM5TR is currently on a mission to develop a folding knife with as few parts as possible. We feel that when there are less parts used in assembly, there is less that can go wrong. When machines and technology are advancing in so many ways, it is our responsibility to explore how these advancements can help us to create a better knife. We’ll never stop trying to make a better knife.
Quartermaster Knives is interested in building our knife designs from the very best components available at the time of manufacture. CPM–Crucible Particle Metallurgy
The proprietary Crucible Particle Metallurgy (CPM®) process has been used for the commercial production of high speed steels and other high alloy tool steels since 1970. The process lends itself not only to the production of superior quality tool steels, but to the production of higher alloyed grades which cannot be produced by conventional steelmaking. For most applications the CPM process offers many benefits over conventionally ingot-cast tool steels. CPM steels are HIP consolidated from tiny powder particles, each having uniform composition and a uniform distribution of fine carbides. Because there is no alloy segregation in the powder particles themselves, there is no alloy segregation in the resultant compact. The uniform distribution of fine carbides also prevents grain growth, so that the resultant microstructure is fine grained.
ADVANTAGES OF CPM
For the End User
- Higher Alloy Grades Available
- Improved Wear Resistance
- Improved Toughness (less chipping)
- Consistent Tool Performance
- Good Grindability (on resharpening)
For the Tool Manufacturer
- Consistent Heat Treat Response
- Predictable Size Change on Heat Treat
- Excellent, Stable Substrate for Coatings
- Excellent Grindability
- Improved Machinability (w/sulfur enhancement)
- Efficient Wire EDM Cutting
The Texas Tea® coating has a funny story behind it; it’s since become a famed new blade-coating that actually started off as an oversight. In recent years, a trend has developed in knives; it’s called a stone washed finish.
It’s created, quite literally, by placing the part inside of a container with stones and detergent/water and waiting for a while. When the parts emerge, whether it be a blade or a frame, the entire part is covered with microscopic scrapes and scratches giving way to a very nice, stone-washed, yet smooth finish.
Well, Texas Tea® is what you get when you accidentally place Black PVD Coated parts into the stone-wash with non-coated parts, that’s all! Some might think it strange that we would coat our parts with a PVD Black, only to remove it with the stone-washing, but the effect is positive on many levels: the remaining PVD coat on the part gives an added layer of corrosion resistance and the style that it gives the knife once assembled is quite unique.