Konosuke Sumiiro Petty 150mm

Regular price £200.00

Currently out of stock (When is it back?) (0)

Konosuke Sumiiro Petty 150mm Purchase options

The petty is a versatile every day knife and when one looks and cuts as well as this you'll be wondering how you lived without it.

First Impressions

The Sumiiro was designed to be slightly taller at the heel and thicker at the spine than other Konosuke knives but without compromising on the performance you'd expect from the very hard SLD steel core.


This is undoubtely a stunning range. The black nashiji finish gives a nod to the black calligraphy ink used throughout the centuries in Japan while the core steel is polished to a fantastic mirror finish. 

It's then paired with a D shaped burnt chestnut handle that both compliments and contrasts the blade. It's a striking knife in every respect.

In Hand

Because of that taller and thicker profile the sumiiro is feels sturdy in hand but remains light, nimble and well balanced while the d-shaped handle has just a little texture in the finish to give a tactile finish in hand.


The SLD core steel takes and holds a great edge and has been hardened to a high level of 65HRC so it's going to last and perform very well. 

Ease of Care

SLD is close to being stainless so caring for it is pretty straightforward if you just follow the normal care instructions for any Japanese knife.

Our Verdict

We're delighted to be able to stock this range and there's little doubt these are high performance and quality knives in every respect and they're designed to perform and last.

Product Quick View

Want to see a little more of the knife? Check out what the knife looks like in hand and up close.

Product details

  • Blade Length: 156mm (Measurement of the cutting edge)
  • Total Length: 300mm (Blade + Handle)
  • Blade Thickness: 4mm (Measured level with heel)
  • Blade Height: 31.8mm (Heel to spine)
  • Total Weight: 84 grams
  • Core Steel: SLD
  • This knife is made from a reactive carbon steel which is not stainless and therefore has some special care instructions and properties.

    Read the carbon steel care guide
  • Cladding Steel: Stainless
  • Hardness: 65 (HRC)
  • Handle Style: Japanese
  • Handle Material: D shaped burnt chestnut
  • Left or Right handed: Either (Double Bevel)

Product SKU: 10201

Our aim is to measure and photograph all our products as accurately as possible but due to the handmade nature of many items, please be aware that there may be some variance in the measurements and that things such as blade and knife handle patterns can vary and presentation boxes may differ from those shown but we will always endeavour to provide the most accurate measurements, photos and descriptions of our products.

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

Protection & care for this knife

A photo of various protective guards for Japanese chef knives

There is no wooden saya available for this knife at the moment but a petty size blade guard is a good option to protect your blade when not in use.

Saya & Guards Knife Racks & Storage Sharpening & Blade Care

Blacksmith Profile

Takahiro Nihei

A craftsman from the Fukushima Prefecture, Nihei trained for years in Sanjo to develop his skills. As is customary from that region, this means Nihei is responsible for all the forging, sharpening, and engraving on his knives.

View all knives from Konosuke

You might also like these

Helping you find the perfect knives & accessories

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.

Ally & James

About us  |  Our promise  |  Contact us