MAC Ultimate 8.5-inch Wide Heavy Chef’s Knife

The SDK-85 features an extra wide blade and a thick spine like a yo-deba, a Western-handled version of the Japanese fish knife. MAC lists it as the Ultimate Series heavy cleaver, and it is built for cutting up fish and chicken, jobs that would strain a thin chef’s knife.

The wide blade and extra weight let it split chicken backs, cut through fish collars and portion whole fish, while the long edge still slices and dices vegetables like a chef’s knife. It is a heavy knife; for fine mincing and long prep lists, a thin chef’s knife such as the MBK-85 is less tiring.

For traditional single-bevel fish knives, compare the MAC deba and the fish cleaver. Our kitchen knife shapes guide explains the deba and the cleaver shapes.

SKU: SDK-85

Availability: In stock

$359.95
  • Details

    Specifications

    • Blade length: 8.3 inches (210 mm)
    • Series: MAC Ultimate Series: 2.5 to 3.0 mm stamped blades with larger bolsters than the Professional Series, for the weight of a forged European knife
    • Steel: MAC Superior steel, a molybdenum stainless steel given an additional sub-zero tempering step for edge retention
    • Edge: double bevel, sharpened evenly on both sides at about 15 degrees per side
    • Handle: black Pakkawood, riveted
    • Blade: extra wide, with a thick spine
    • Model number: SDK-85

    MAC Chef’s Knives Compared

    The Chef Series is the thinnest and lightest; the Professional Series adds a bolster; the Ultimate Series adds a thicker blade and a larger bolster for the heft of a forged knife.

    KnifeSeriesWhat sets it apart
    7.25-inch chef’s knifeChefCompact, light gyuto shape
    7-inch non-stick gyutoChefBlack fluorine non-stick coating
    8-inch chef’s knifeChefThin, light, no bolster
    8-inch chef’s knife with dimplesChefChef Series blade with dimples
    8-inch chef’s knife with dimplesProfessionalBolster, dimples, Superior steel
    8.25-inch non-stick sushi chef’s knifeChefNon-stick coated blade
    8.5-inch chef’s knifeChefNarrow, light gyuto shape
    8.5-inch chef’s knifeProfessionalBolster, French profile
    8.5-inch wide heavy chef’s knifeUltimateWide, thick yo-deba style blade
    9-inch chef’s knifeUltimateHeaviest bolster, forged feel
    9.5-inch chef’s knifeProfessionalBolster, French profile
    10-inch chef’s knifeChefLong, light, no bolster
    10-inch chef’s knife with dimplesChefLong Chef Series blade with dimples
    10.25-inch chef’s knifeUltimateHeaviest bolster, forged feel
    10.75-inch chef’s knifeProfessionalLongest Professional chef’s knife

    Keeping the Edge

    MAC steel is harder than most German and American kitchen knife steel, so the edge is maintained with ceramic rather than a steel rod. As a rule of thumb, we use ceramic on steels greater than 60 Rockwell hardness. The MAC black ceramic honing rod and the white ceramic rod touch up the edge between sharpenings, and the MAC Togu sharpener resets the factory angle on a ceramic wheel.


    Care

    • Wash by hand with warm, soapy water and dry the knife at once. Do not put it in a dishwasher.
    • MAC steel is stainless but not immune to spotting; do not leave the blade wet, soaking or in contact with acidic food.
    • The heavier blade will take soft chicken and fish bones; do not use it on beef or pork bone or frozen food.
    • Cut on wood or plastic boards. Keep the edge away from bone, frozen food and hard shells.
    • Warranty claims are handled by MAC directly.

    Knife Merchant is an authorized MAC knife seller.

    Additional Info

    Blade Length (Inches) 8.25 in.
    Blade Length (mm) 210 mm
    Blade Width (inches) 2.375
    Grind 50/50 Bevel
    Steel Type AUS8
    Rockwell Hardness 60
    Stainless Yes
    Handle Material Black Pakkawood
    Spine Thickness (mm) 3.95
    Brand MAC
    Country of Manufacture Japan
    SKU SDK-85
    Manufacturer's Part Number SDK-85
    Manufacturer's Suggested Retail Price $425.00

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