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Home | Japanese Kitchen Knives | Naozumi Chukka Bocho 180mm Chinese Cleaver Carbon

Naozumi Chukka Bocho 180mm Chinese Cleaver Carbon

$103.00
$103.00
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An approachable introduction to both Chinese-style cleavers and carbon steel knives. The SK steel is a tougher variety of carbon steel that still sharpens nicely and is slower to react.

This 180mm version is well-sized for home use, especially smaller kitchens. 



About This Knife

All-around Use

Can handle almost any kitchen task.

Light Butchery OK

Safe for use around bones.

Carbon Steel

Reactive blade.

Convex Grind

Super smooth cutting feel.

Ambidextrous

Suitable for all users.

Chinese Style Cleaver

A carving knife is a long, narrow kitchen knife made for slicing cooked meats into thin, even portions. Its slim blade reduces resistance so it can glide through roasts, poultry, and ham with smooth, controlled strokes. The pointed tip helps with detail work around bones and joints. Designed for clean presentation, it’s the go-to tool for serving uniform slices with minimal tearing.

Listed Length: 180mm
Total Length: 282mm
Edge Length: 180mm
Heel Height: 82mm
Spine Thickness: 2.4mm
Weight:
Orientation: Right-hand Bias

Blade Type: Carbon Steel
Steel Type: SK4 Carbon Steel (JIS SK4)
Steel Hardness (HRC):
Reactive: Yes
Handle Type: Western
Handle Material: Pakka

  • This is a carbon steel knife made from thin, hard steel.
  • Hand wash and towel dry after use. Do not air dry or place in the dishwasher.
  • Expect oxidation (color change, staining, spotting) with use.
  • Prolonged exposure to moisture or food debris will cause rust; remove any rust with a light abrasive.
  • Remove surface rust gently with a mild abrasive and progress to more aggressive abrasives if needed. Coarse abrasives will leave scratches in most finishes.
  • Avoid twisting, scraping, or use on dense or hard foods and surfaces to avoid early dulling and edge damage. If you wouldn't bite into it, don't cut it with this knife.
  • Use on wooden cutting boards only. Do not use bamboo, plastic, stone or metal cutting surfaces.

Dive Deeper

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.

Sharpening Supplies

Stones & Accessories selected specifically for this knife.

Arato-kun #220 Extra Coarse Grit Whetstone

Arato-kun #220 Extra Coarse Grit Whetstone

$34.00
$34.00
Bernal Cutlery Takarazukushi 1200 Grit Blue Marble Semi-Soft Ceramic Japanese Whetstone

Bernal Cutlery Takarazukushi 1200 Grit Blue Marble Semi-Soft Ceramic Japanese Whetstone

$74.00
$74.00
Bernal Cutlery Takarazukushi 4000 Grit Yellow Semi-Hard Resinoid Japanese Whetstone

Bernal Cutlery Takarazukushi 4000 Grit Yellow Semi-Hard Resinoid Japanese Whetstone

$82.00
$82.00
Arashiyama #6000 Whetstone Stone NO Wooden Base

Arashiyama #6000 Whetstone Stone NO Wooden Base

$58.00
$58.00
Arashiyama #6000 Whetstone With Nagura Stone and Wooden Base

Arashiyama #6000 Whetstone With Nagura Stone and Wooden Base

$62.00
$62.00
Bernal Cutlery Monodiachrome™ Precharged Deburring Strop

Bernal Cutlery Monodiachrome™ Precharged Deburring Strop

$40.00
$40.00



SK4 Carbon Steel (JIS SK4)

Carbon (C): 0.9%| Manganese (Mn): 0.5%| Silicon (Si): 0.25%| Phosphorus/Sulfur: trace

A simple Japanese carbon steel (~0.9% C) similar to 1095, SK4 offers good hardness and sharpness with basic heat treatment. Typically hardened around 60 HRC, it’s affordable and tough, often used for utility and entry-level blades. Fully reactive, it patinas quickly but sharpens easily.



About Naozumi


Naozumi is a Japanese knife brand known for its strong ties to blacksmiths and sharpeners across Japan. Rather than forging their own blades, Naozumi focuses on sourcing and assembling knives from respected regional craftspeople, combining consistent quality control with an eye for performance and character. The result is a lineup of practical, well-made tools that reflect the strength of collaborative craftsmanship.

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