Yoshimi Kato AS Nashiji Petty 150mm

Regular price £140.00

Currently out of stock

Yoshimi Kato AS Nashiji Petty 150mm Purchase options

Kato san's classic aogami super with a classy and understated nashiji finish is a great all rounder and shows off an understated design paired with a quality finish and edge.

First Impressions

Excellent sharpness out of the box and an impressively even grind along the length of the blade as you'd expect from a blacksmith of Yoshimi Kato's skill and experience. This is a high performance knife by any measure.


The nashiji or "pear's skin" finish is one of our favourites - it's subtle but still has a great deal of visual interest when you look a little closer. 

It's created by spraying powdered iron on the blade while it's being worked on and so every single blade is most definitely unique.

In Hand

Nice and light with a traditional wa handle and a good balance point, fit and finish around the heel of the knife it's easy to use, nimble and comfortable in hand.


The aogami super core has been hardened to around 63-64HRC and is comparable to many carbon steels for sharpness and edge retention and will keep an impressive edge sharpness.

Ease of Care

Normal carbon steel care instructions apply as always - rinse and dry after use and no dishwashers but other than that you've got a nice low maintenance stainless knife thanks to the AS core and stainless cladding. Easy!

Our Verdict

The AS is a super daily knife and one we'd absolutely be reaching for to do a wide range of jobs. 

It combines great out of the box performance, looks and durability so it's definitely one we're happy to recommend and we're big fans of Kato san.

Product details

  • Blade Length: 148mm (Measurement of the cutting edge)
  • Total Length: 274mm (Blade + Handle)
  • Blade Thickness: 2.16mm (Measured level with heel)
  • Blade Height: 28.7mm (Heel to spine)
  • Total Weight: 68 grams
  • Steel Type - Cladding: Stainless
  • Steel Type - Core: Super Blue Steel
  • This knife is made from a reactive carbon steel which is not stainless and has some special care instructions and properties – Read our carbon steel care guide here

  • Left or Right handed: Either
  • Hardness: 63-64 (HRC)
  • Handle Style: Japanese
  • Handle Material: Walnut with buffalo horn bolster

Product SKU: 9164

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.

Compatable saya or guard

The Oster Rob petty saya and petty sized blade guard are a good fit for this knife if you're not storing it on a magnetic rack or block.

View all sayas, guards and storage options

Blacksmith Profile

Yoshimi Kato

Yoshimi Kato San is the son-in-law of Hiroshi Kato San and is a highly skilled and renowned blacksmith working at the Takefu knife village where he creates his own ranges of knives as well as knives for other brands such as Masakage.

View all Yoshimi Kato knives

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Helping you find the perfect knife

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

Since 2011 we've helped thousands of happy customers find the perfect knife for their cooking and hope to serve you soon.

Ally & James

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