Hatsukokoro Hayabusa SG2 Petty 150mm

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Regular price £175.00

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Like its counterparts in the range, this petty is both light and nimble and a perfect size for the more intricate jobs where precision and an excellent edge are always needed.

Fitted with a beautiful full-tang micarta handle with a stylish trim inside, it's well balanced and very comfortable in hand.

First Impressions

The Hayabusa is a great mix of old and new, the overall blade shape is made using more modern roll forging process that creates a consistent and exacting laser profile and then each individual blade is sharpened and finished by hand which gives it the excellent edge you'll enjoy from the moment you start using it.


A classic polished finish with a visually interesting and consistent grind exposing the steel core and the Kanji is 初心 meaning 初 (innocent) 心 (spirit).

The SG2 is an understated and simple looking knife for those who don't seek more eye popping finishes (if you do, check out the Hayabusa HAP40 damascus!)

In Hand

The entire range is impressively lightweight and overall they're pretty thin all the way along the spine and have a fairly minimal taper as a result.

The heel of the knife is comfortable but it would be nice if it were perhaps just a little more rounded and finished around the edges for extra comfort.


SG2 is easy to care for and has great edge retention properties and so it's a widely used choice for durable high performance knives.

Ease of Care

SG2 is a stainless steel and is easy to maintain and resharpen. Just follow our normal care instructions and this is a knife you will be using for many years.

For long term care we'd recommend a Japanese knife care kit.

Our Verdict

The SG2 in the Hayabusa range sits at a great mid point in terms of pricing along with the standard HAP40 and features a well made and finished laser profile across the range and with the overall ease of care and sharpening SG2 steel offers it's a great option for both home and professional kitchens.

Sandwiching the SG2 and HAP40 are the lower cost VG5 which offers a similar profile but cheaper core steel and at the higher end if you want both visual wow factor and an incredible heat treat then the damascus HAP40 is an incredible collection of knives.

This knife certainly offers both value and quality and definitely will be a firm favourite.

Product details

  • Blade Length: 150mm (Measurement of the cutting edge)
  • Total Length: 261mm (Blade tip to handle end)
  • Blade Height: 30mm (Heel to spine)
  • Blade Thickness: 2.01mm (Spine width above the heel) 1.86mm (Measured halfway along spine) 1.05mm (Measured 15mm from tip)
  • Total Weight: 90 grams
  • Core Steel: SG2
  • Cladding Steel: Stainless
  • Hardness: 63 (HRC)
  • Handle Style: Various
  • Left or Right handed: Either (Double Bevel)

Product SKU: HAT-097

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

Due to the bolster and heel shape, only the petty size blade guard fits this knife.

Saya & Guards Knife Racks & Storage Sharpening & Blade Care

Meet the maker


Based in Seki city, Hatsukoroko employ a range of techniques and work with a selection of master blacksmiths working entirely by hand and for some ranges, they make use of modern machinery to combine craft with extreme precision.

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.

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