Yu Kurosaki Gekko Petty 150mm

Regular price $241.00

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Light, nimble and understated, the large Gekko petty is an excellent utility knife suitable for a wide range of jobs and shows Kurosaki-san's eye for subtle design is just as good as his more visually impactful lines.

First Impressions

Right out of the box the Gekko is a thin knife and that profile is just ready to cut. Kurosaki-san is perhaps better known for knives that are a bit more showy with their incredible hammer finishes but this line is pure understated class.


The subtle migaki finish and single piece octagonal oak handle is a beauty and the slightly unorthodox "Ei" shape of the spine provides more visual interest as well as additional clearance.

In Hand

Across the range, the Gekko has a thin profile bordering on a laser and on the smaller petty and longer sujihiki you'll find even with the slanted Ei shape, they feel quite familiar in hand height wise.

That shape does come into its own a little more once you use the all rounders (bunka and gyuto) and also the nakiri where there is a definite feel and benefit of the additional height and clearance.


This line has been designed to make use of HAP40 steel which is hardened to a high level (64-66HRC) and so offers excellent edge retention and durability. 

It's semi-stainless so the core steel will develop a slow, light patina over time and just show that core steel up to the stainless cladding.

Ease of Care

These are a semi stainless knife so we'd recommend caring for them following the normal rinse and dry routine but it would also be worth applying drop or two of camellia oil from time to time as HAP40 steel has a chromium content but it's worth the bit of extra care for the edge retention properties it offers.

The core steel develops a light patina over time but it's more subtle than a fully reactive carbon steel.

Our Verdict

With many of Kurosaki-san's knives you're often immediately drawn to the incredible range of finishes he creates but the Gekko is a different beast. It's low-key and subtle but as with all his knives, the foundation of quality steel and top class finish is still there.

Performance is excellent as always and if you're able to get a Gekko knife while they're in stock, then we're confident you're going to enjoy the looks and feel paired with the brilliant HAP40 steel.

Product details

  • Blade Length: 155mm (Measurement of the cutting edge)
  • Total Length: 287mm (Blade tip to handle end)
  • Blade Height: 33.2mm (Heel to spine)
  • Blade Thickness: 1.99mm (Spine width above the heel)
  • Total Weight: 81 grams
  • Core Steel: HAP40
  • Cladding Steel: Stainless
  • Hardness: 64-66 (HRC)
  • Handle Style: Japanese
  • Handle Material: Octagonal single piece oak
  • Left or Right handed: Either (Double Bevel)

Product SKU: YUK-0032

Our aim is to measure and photograph our products as accurately as possible but due to many items being handmade, finished or using natural materials, there can be minor variance in measurements and things such as blade or wood finishes can vary. We will always endeavour to provide the most accurate measurements, photos and descriptions of our products.

Some measurements such as HRC are provided by manufacturers and should therefore be used as a guide.

Protection & care for this knife

We recommend the 150mm magnolia petty saya for this knife.

Saya & Guards Knife Racks & Storage Sharpening & Blade Care

Blacksmith Profile

Yu Kurosaki

The youngest blacksmith to be granted the title of Master Nokaji and senior teacher at Takefu Knife Village, the skill and craft put into each of his knives is clear to see.

View all knives from Yu Kurosaki

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Cutting Edge Knives is a family run business established in 2011 and based in the picturesque town of Holmfirth, West Yorkshire. We love the history and craftsmanship that goes into making Japanese chef knives and accessories and the excitement and enjoyment you experience when using a truly sharp knife in the kitchen.

Over many years we've helped thousands of happy customers find their dream knife and look forward to helping you too.

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