BÖHLER M390

BÖHLER M390 MICROCLEAN is a premium powder-metallurgy stainless steel with outstanding wear resistance, long cutting life and good corrosion resistance. Its exceptionally clean structure makes it an exciting material for a knife you choose for lasting sharpness and refined cutting performance.

WHAT THIS MEANS IN A KNIFE
M390 is chosen when long edge retention and corrosion resistance are major priorities. Its alloy design and powder-metallurgy structure support a fine, consistent distribution of hard carbides. At Kizlyar Supreme, we bring those strengths together with steel-specific heat treatment and purposeful blade geometry to make premium steel count in real cutting.

KIZLYAR SUPREME HEAT TREATMENT
Kizlyar Supreme M390 blades are typically targeted around 61–63 HRC, depending on the model, blade thickness and production run. Precise temperature control and a protected heat-treatment environment help us develop the long-lasting edge that makes M390 so desirable.

EDGE RETENTION AND TOUGHNESS
Long-lasting sharpness is M390’s signature strength. We match the edge geometry to the model so you can enjoy that cutting performance in a knife designed for your work. M390 should not be used as a pry bar, screwdriver or impact tool, and heavier chopping requires a knife designed specifically for that work.

SHARPENING
Because M390 contains a high volume of wear-resistant carbides, sharpening is easiest with quality diamond or CBN abrasives; suitable ceramics can be useful for maintenance and finishing. Touch up the edge before it becomes completely dull, keep the angle stable and use light finishing strokes to minimise the burr.

CORROSION CARE
Low-maintenance stainless performance is another part of M390’s appeal. A quick clean and dry after use is normally all everyday care asks of you. After salt or acidic food, clean promptly; use a suitable protective oil before long storage or in particularly humid conditions.

BEST SUITED TO
M390 is an excellent choice for EDC, hunting and outdoor knives where users value long cutting life, stainless behaviour and premium performance. The trade-offs are higher material cost and more demanding sharpening than simpler steels.

KEY ADVANTAGES
• Very high wear resistance and long edge retention
• Good corrosion resistance
• Very high micro-cleanliness and dimensional stability
• Suitable for fine cutting edges when geometry is appropriate

CONSIDERATIONS
• Premium cost
• Benefits from diamond or CBN sharpening abrasives
• Toughness and ease of sharpening are not its primary advantages

Composition and baseline properties are based on Böhler's official M390 MICROCLEAN technical information.