FOLDING KNIFE FOLDER BIG STING #0028 RWL34 HERMAN KNIVES

Big Sting keeps everything people like about the Sting: clean elegance, low weight, and everyday versatility. The difference is scale—its larger size (closer to the Dragonfly) improves ergonomics and makes the knife feel more confident in use, especially when you need longer cuts or a bit more pressure. On top of that, you get premium blade steels such as M390, M398, CPM MagnaCut, Damasteel RWL34, and Damascus variants. The result is still a discreet EDC, but with extra comfort and capability built in.

PRODUCT DETAILS

Model: Big Sting

Version: Right-handed

Blade steel: Damasteel RWL34, powder stainless steel,

thickness 3,9 mm (0.1535"), hardness 61 HRC, heat treated with a deep crio (liquid nitrogen), Medium detent,

Type of blade grind: Hollow Grind with a large radius

Blade finish: Shiny Stonewash

Handle: Titanium Grade 5

Inlay: None

Clip: Titanium Grade 5

Backspacer : Titanium Grade 5 

Pivot: 440C stainless steel - Polished

Screws:440C stainless steel - Polished

Lock: Titanium Grade 5

Bearing system: Custom-made ceramic caged 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

The custom Herman Knives pivot was fully designed and manufactured in our workshop. Built on the TORX T20 system, the construction features a newly developed thread with an increased diameter and reduced pitch, resulting in higher precision and smoother pivot adjustment. This solution minimizes the risk of play and ensures more stable settings.

The component is made of 440C stainless steel, vacuum-hardened to 56–58 HRC. The vacuum hardening process guarantees a uniform steel structure, excellent dimensional stability, and increased wear resistance. Thanks to this, the pivot offers long-lasting durability and retains its properties even under intensive use.

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 titanium screwdriver manufactured in-house by Herman Knives.

Weight: 154 g ( 5.43 oz. )

Overall length: 225 mm (8.86")

Blade length: 95 mm (3.74 ")

Folded length: 130 mm (5.12 ")

Blade width: 31 mm (1.22 ")