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Bernal Cutlery x Konosuke GS+ 140mm Ko-Sabaki SLD Kurouchi Khii Laurel Handle with Leather Sheath

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Bernal Cutlery x Konosuke 'GS+' Ko Sabaki butchers petty is back! With a new kurouchi finished stouter wide beveled blade and oversized grippy khi laurel octagon handle.  Comes with Leather Sheath cover. Made in Sanjo Japan. 

The Ko Sabaki is made to pick up where a traditional honesuki maru leaves off and is great for trimming, seaming, and working around silverskin. The hard yet tough SLD semi-stainless steel core with stainless cladding cuts very well as it dulls and is responsive to standard butcher’s steel for easy edge tough-ups. The blade is designed not to snag and the large octagonal laurel wood handle provides a secure grip. While this blade is tougher than the average petty and is fine going along the bone, through joints, and thinner poultry bones, care must be taken not to twist or pry with it; it can bend easier than a mono steel boning knife.

Konosuke GS+ series knives are a three layer san mai forged blade with a stainless cladding and a semi-stainless/stainless SLD core. SLD steel is an improved SKD11 steel most commonly used in tap and die tools and metal stamping dies. It is designed to stay tough when treated hard and to retain its workability at a high hardness. For knife making this translates to a toothy long lived tough edge with near stainless or stainless properties; it holds an edge well and even cuts well as it dulls. 

Konosuke, a Sakai-based company, works with top skilled blacksmiths from all over Japan. Konosuke’s knives spare no attention to detail, from the heat treatment and grinds to the packaging. Their focus is on their hometown of Sakai City, where the Kawamura family has operated for many generations.

 

Butchery Knife

Built for tough butchery work.

Light Butchery OK

Safe for use around bones.

Semi-stainless

Reacts very slowly with regular use.

Wide Kireba Bevel

Smooth, robust cutting feel.

Ambidextrous

Suitable for all users.

Ko-sabaki

Listed Length: 140mm
Total Length: 280mm
Edge Length: 130mm
Heel Height: 26mm
Spine Thickness: 2mm
Weight:
Orientation: Ambidextrous

Blade Type: Semi-Stainless Steel
Steel Type: SLD
Steel Hardness (HRC): 61-62
Maintenance: Some Attention
Handle Type: Japanese (wa)
Handle Material: Khii (Chestnut) Laurel

  • This is a stainless steel knife.
  • It should be hand washed and towel dried. Dishwashers will degrade the edge and handle over time. Extended moisture exposure can still cause oxidation.
  • Use on wooden cutting boards for best results.
  • Avoid hard surfaces like bamboo or plates. Don't twist or scrape the edge on the cutting surface to avoid early dulling and edge damage.

Medium-fine finish

We recommend sharpening by hand using whetstones starting around 1000 grit progressing to at least 4000 for this steel type and edge geometry. Finish with a monodiachrome strop for a smooth cut with a substantial bite. Finer finishes are possible, but the knife may slide on smooth foods and overall edge retention may suffer. During repair, use a super coarse stone to pass chips quickly to help keep flat bevels.

  • Avoid pull-through sharpeners and non-water-cooled mechanized systems.
  • Strops and ceramic honing rods are preferred for as-needed edge maintenance. If you have to use a honing rod to be able to use the knife comfortably, it's time to sharpen the knife.

About Konosuke

Sakai, Osaka, Japan

Konosuke is a Japanese knife company based in Sakai City, Osaka Prefecture—one of Japan’s most storied centers of traditional blade-making. Founded in 2006 by Kosuke Kawamura, Konosuke emerged from the Kawamura family’s longstanding involvement in the cutlery industry through their parent company, Kaneshige Hamono, which has been producing knives since 1932.

See All Konosuke