San Mai Knife – Böhler S290 Core & Stainless Damascus Cladding
Stabilized Karelian Birch • Mammoth Tooth Spacer • Mokume Bolster • Hand-Painted Leather Sheath
A premium fusion of exotic materials, elite steel, and meticulous craftsmanship — this knife from Brothers Berezhnye stands out in both aesthetics and performance.
At its core is Böhler S290 — a high-speed powder metallurgy steel hardened to 67 HRC. With an ultra-fine microstructure and high-volume carbides, it delivers outstanding wear resistance, compressive strength, and edge stability. The chemical composition is precise and performance-driven:
C 2.00 %
Cr 3.80 %
Mo 2.50 %
V 5.10 %
W 14.30 %
Co 11.00 %
The cutting core is clad with hand-forged stainless Damascus steel, providing added durability and moisture resistance in the classic San Mai fashion.
The handle is crafted from stabilized Karelian birch, offering both resilience and the wood’s characteristic visual depth. A mokume bolster replaces traditional metals, adding a bold, artisanal flair with its layered, flowing metallic patterns. A unique mammoth tooth spacer contributes a natural, historical element. A mosaic pin and integrated lanyard hole enhance functionality and personalization.
The knife comes with a hand-molded, black-dyed leather sheath, featuring a hand-painted illustration—a detailed and expressive design that brings individuality and character to each piece. The free-hanging belt loop ensures ease of carry in the field.
Specifications
Blade construction: San Mai
Core steel: Böhler S290 (67 HRC)
Blade cladding: Stainless Damascus
Blade length: 130 mm
Blade width: 29 mm
Blade thickness: 3.2 mm
Overall length: 257 mm
Knife weight: 185 g
Weight with sheath: 290 g
Handle material: Stabilized Karelian birch
Spacer: Mammoth tooth
Bolster: Mokume
Pin: Mosaic with lanyard hole
Sheath: Black-dyed vegetable-tanned leather, hand-painted, free-hanging loop
Craftsmanship: 100% handmade
Maker: Brothers Berezhnye
Care Instructions
Important: The stainless Damascus cladding protects against corrosion, but the S290 core is not stainless. After use, thoroughly clean and dry the blade, then apply a thin coat of acid-free oil to maintain performance and prevent oxidation.
A standout in any high-end knife collection — this piece blends technical prowess, natural sophistication, and handcrafted quality. Every detail reflects precision, legacy, and modern performance.
