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Customer pays 25% at time of order, 25% at 30 days, 25% at 60 days and final 25% at 90 days.
The "Vespertilio" knife, named after the Latin word for "bat," is another unique creation from the Herman Knives collection. This compact knife with a warncliff blade type is designed for the highest precision cutting, combining both functionality and a unique design inspired by the agility and mystery of bats.
The warncliff blade type, characteristic of the Vespertilio knife, is ideal for very precise tasks, allowing for accurate and controlled cutting. The shape of this blade, inspired by the shape of bat wings, provides exceptional performance and precision.
The compact size of the Vespertilio knife makes it an ideal choice for those who need a reliable, yet easy-to-carry tool. Its small size does not compromise functionality – Vespertilio is just as durable and effective as larger knife models.
The aesthetics of the Vespertilio knife, inspired by the elegance and mystery of bats, gives it a unique character. Its appearance is not only unique but also practical, facilitating handling and enhancing ergonomics.
Each Vespertilio knife is meticulously crafted by artisans at Herman Knives, ensuring the individual character and highest quality of each knife. Vespertilio is not just a tool, but also an expression of applied art, combining craftsmanship, functionality, and unique design, making it an excellent choice for lovers of precision and uniqueness.
PRODUCT DETAILS
Blade: Bohler M398 powder stainless steel,
thickness 3,20 mm (0.1260"), hardness 62-63 HRC, heat treated with a deep crio (liquid nitrogen)
Blade finish: Stonewash
Handle: Titanium Grade 5
Backspacer: Titanium Grade 5
Clip: Titanium Grade 5
Lock: Titanium Grade 5
Bearing system: Custom-made ceramic ball bearings by Herman Knives
New improved bearing system.
Washers made of M390 powder metallurgy steel further enhance the already exceptional operation of our knives. Every stage of production has been optimized to ensure even greater precision, durability, and, most importantly, the smoothness of our knives.
Washer manufacturing process:
M390 steel is machined in-house on our Swiss-type lathe Citizen Cincom A20, where the bar stock is processed and pre-drilled.
Washer dimensions: Inner diameter 5.05 mm, outer diameter 11.95 mm; (for Bee and Micro Sting models: outer diameter 9.95 mm).
25 mm-long rods undergo vacuum heat treatment to 60 HRC, reducing material stress and minimizing the risk of deeper blade scratches and ceramic ball fractures.
After hardening, washers are machined using EDM (Electro Discharge Machining) on our Mitsubishi MV1200R wire EDM machine, allowing precise inner hole execution.
They are then wire-cut into 0.6 mm-thick slices, and final wire processing minimizes surface roughness.
Final manual lapping, up to a 4000-grit finish, gives the washers an almost mirror-like surface, ensuring even smoother bearing operation.
All these processes are carried out entirely in-house by Herman Knives.
Ceramic detent ball
Tungsten carbide insert on the lock
Tungsten carbide stop pin
New, improved pivotWe have refined the pivot construction, elevating its precision and the smoothness of the knife’s operation to an even higher level.
It consists of three elements:
A phosphor bronze bushing (a highly durable material with self-lubricating properties). It is precisely fitted to the hole in the blade, which is also machined in-house using our EDM machine. This eliminates all unnecessary play, ensuring flawless blade rotation through the resulting plain bearing.
A seven-petal clover-shaped screw – prevents rotation within the construction.
Torx T20 – secured with an easily removable Loctite for adjustability. If adjusting, be sure to reapply the same type of thread locker.
The screws are made of vacuum-hardened stainless steel. All three components are produced in-house by Herman Knives on our Swiss-type automatic lathe.
Bearings with increased stability
Based on years of experience, the new bearings feature a caged design with 16 ceramic balls. Their well-thought-out and tested structure effectively prevents ball displacement while ensuring optimal smoothness of operation.
Simple, isn’t it?
New original box including a microfiber cloth, Pruciak Protector Glide for Herman oil, and a dedicated stainless steel screwdriver manufactured in-house by Herman Knives.
Weight: 107 g (3.77 oz)
Overall Length: 183 mm (7.20 ")
Blade length: 76 mm (2.99")
Folded length: 107 mm (4.21 ")
Blade width: 26 mm (1.02 ")
My name is Bartosz Herman. I specialize in handcrafting knives - and now also pens - based on my own designs and custom orders. I strive to ensure that each piece is unique, comfortable to use, and pleasing to the eye of its owner. I am continuously working to improve my skills so that my creations become even better. I invite you to take a look at the results of my work.
