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Home | Japanese Kitchen Knives | Gihei 150mm Petty ZDP189 Keyaki Handle

Gihei 150mm Petty ZDP189 Keyaki Handle

$395.00
$395.00
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Gihei 150mm Petty. ZDP189 stainless powder steel blade. Keyaki (Zelkova) wood octagon handle with buffalo horn ferrule. HRC 65.

Gihei knives are forged and hand ground in Tsubame Sanjo, Niigata at a small family business. Gihei works with some old style steels like shirogami and aogami and also works with new alloys such as ZDP-189.

ZDP-189 is a tungsten powder steel made by Hitachi with a very high carbon content 3% (!) and a high chromium content; 20%. It can be made very very hard without becoming brittle but Gihei brings this steel to around 65 HRC (it can be hardened to 67...) which leaves their knives with a both good hardness and good sharpen-ability. It holds an edge very nicely and cuts well as it dulls, we were very impressed with this series during our trials.

Handle is Japanese keyaki / zelkova wood, a beautiful densely grained wood often used for fine woodworking. It has a great grip wet and wears nicely.




About This Knife

General Purpose

Good for veggies and boneless protein

Avoid Bones & Dense Foods

If you can't bite it, don't cut it.

Semi-stainless

Reacts very slowly with regular use.

Wide Kireba Bevel

Smooth, robust cutting feel.

Ambidextrous

Suitable for all users.

Petty

A small utility knife used for delicate work like peeling, trimming, and slicing small produce or herbs.

Listed Length: 150mm
Total Length: 286mm
Edge Length: 148mm
Heel Height: 36mm
Spine Thickness: 2.1mm
Weight:
Orientation: Ambidextrous

Blade Type: Stainless Clad Semi-Stainless Steel
Steel Type: ZDP-189
Steel Hardness (HRC): 65
Reactive: Partially
Handle Type: Japanese (wa)
Handle Material: Keyaki & Horn Ferrule

  • This is a semi-stainless steel knife made from thin, hard steel.
  • Semi-stainless steel knives can vary in corrosion resistance and can develop a light patina if they are neglected regularly.
  • Hand wash and dry immediately after use. Do not air dry or clean in the dishwasher.
  • Rust can form with repetitive long-exposure to moisture or debris. 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



ZDP-189

Carbon (C): 2.9–3.3% | Chromium (Cr): 19.0–20.0% | Molybdenum (Mo): 1.2–1.6% | Vanadium (V): ≤0.1%

ZDP‑189 is an ultra‑high‑carbon PM stainless targeting extreme hardness (~64–67 HRC) and wear resistance. It holds a razor edge for an exceptionally long time but is harder to sharpen and less tough; best for fine slicing on stable edges. Take special note of the amounts of Carbon and Chromium in the alloy, both nearly twice what we find in most steels.



About Gihei

Sanjo, Niigata, Japan

Gihei Hamono is a small, family-run workshop in Sanjo, Niigata, founded in 1928. Now led by Takashi Hosokawa, Gihei blends traditional forging with modern metallurgy. Known for excellent heat treatment, the workshop produces carbon and high-performance stainless knives, including ZDP-189 blades praised for their edge retention.

Each knife is hand-forged and finely finished in small batches, ensuring high performance and consistency. Gihei knives reflect generations of knowledge and a commitment to evolving craft—well-balanced tools trusted by professionals and enthusiasts alike.

See All Gihei