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Kei Kobayashi SG2 bunka 170mm

Kei Kobayashi SG2 bunka 170mm

Regular price 楼30,000 JPY
Regular price Sale price 楼30,000 JPY
Sale Sold out
Kei Kobayashi is a relatively young knife-maker based in Seki City, Japan. He started out as a knife sharpener where he sharpened and finished knives for some top artisans in Seki City. Eventually, he decided to open his own workshop where he specialized on making 'laser' knives with SG2 core steel. Every knife he makes reflects his attention to detail and vast sharpening experience.

Laser knives, just like this bunka, are ideal for anyone who prefers a lighter, thinner knife.

饾檼饾櫇饾櫀饾櫓 饾櫈饾櫒 饾櫀 饾櫋饾櫀饾櫒饾櫄饾櫑? It is a Japanese knife with a thin spine and thin cross-sectional geometry. A laser gracefully cuts through food with ease. It is said that even if it is not in its peak sharpness, a laser聽can perform better than other types of knives.

Brand/ blacksmith: Kei Kobayashi
Location: Seki, Japan
Knife type: bunka
Finish: migaki

Construction type: warikomi
Steel: SG2
Steel type: stainless

Overall length: 317mm
Blade length (heel to tip): 170mm
Blade height at heel: 46.6mm
Spine thickness at handle: 1.8mm
Spine thickness at heel: 1.8mm
Spine thickness at middle: 1.7mm
Spine thickness 1cm from the tip: 0.7mm
Weight: 133g

Edge/bevel: 50:50
Handle: urushi heptagonal pakkawood
Hand orientation: ambidextrous

Exclusive of shipping fee.
We ship worldwide via EMS or DHL.

Order Policy


Returns can only be made within聽14 days upon receiving the product. Buyer shoulders the return of products. Product must be unused and in the same condition when you received it and it must also be in the original packaging. To complete your return, we require a receipt or proof of purchase. Please email us at to arrange a return.

Please note that knives damaged by misuse, improper care, poor technique, mistakes in use or sharpening, or any other type of damage resulting from user error are not eligible for return, exchange, or refund.


Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.
If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within a certain amount of days


If you haven鈥檛 received a refund yet, first check your bank account again. Then contact your credit card company, it may take some time before your refund is officially posted. Next contact your bank. There is often some processing time before a refund is posted. If you鈥檝e done all of this and you still have not received your refund yet, please contact us at

EXCHANGES (if applicable)

We only replace items if they are defective or damaged upon arrival (not due to misuse). If you need to exchange it for the same item, send us an email at


Zahocho Knives Tokyo makes no representations or warranties of any kind, either expressed or implied, including, without limitation, warranties or conditions of title, or implied warranties of merchantability or fitness for a particular purpose, or non-infringement. Zahocho Knives Tokyo is not responsible for printing or typographical errors. Pricing and availability are subject to change without notice.


聽We ship from Tokyo to over 150 countries worldwide.

FREE SHIPPING for orders over 20,000JPY or approx. 140USD. For orders under 140USD, please refer to the rates below.

鈥 International shipping

For USA, Canada, Europe, and Australia, we ship via DHL.
For Asia and Middle East, we use JapanPost EMS.

Upon order confirmation, we will ship out in 1-2 days.

Note: Regarding shipping to the UK, we, just like other retailers, are still unable to do so because of the new UK law (age verification for online knife purchases; passed in June 2022); DHL and JapanPost still do not have a system for age verification.

鈥 Delivery time

US, Canada, Australia, Europe: 3-5 days
Middle East: 5-10 days
Asia: 2-5 days

Note: The number provided only represents the average time required for normal delivery and does not guarantee the exact number of days required for delivery. The number of days may change聽depending聽on the transport, customs, and handling conditions in the destination area.

For Philippines:
Manila and nearby cities: 2-5 days
Visayas/Mindanao: 10-15 days

鈥 Tracking your Order

After your order has been shipped, we will send a confirmation email with a link to track the shipment.

鈥 Customs and Import Duties for International Orders

The item price and shipping charges do not include import duties, taxes, or charges. These fees are the responsibility of the buyer. For PH, there are no taxes regardless of value.

鈥 Rates

For your reference, one knife is approximately 300g. A whetstone is around 1kg.

US, Canada and Australia: DHL

shipping rates for dhl

Asia: EMS

shipping rates ems

Middle聽East: EMS

shipping rates middle east

Care Instructions

Japanese kitchen knives requires some attention. It's crucial to pay attention to the following points.

Correct use
鈥⒙Always use the appropriate knife for the task.
鈥⒙Refrain from moving the knife in a lateral direction while cutting. Use the thrust-cutting technique.聽
鈥⒙Avoid bones and frozen food.
鈥⒙Always use a wooden or rubbing cutting board.聽Avoid hard plastic, glass, or marble.聽

鈥⒙Wash and dry the blade as soon as you're done with it especially carbon steel knives.
鈥⒙Always wash your Japanese kitchen knife by hand.聽Never use a dishwasher.

Knife maintenance
聽Use sharpening whetstones to sharpen or touch up your Japanese knife. In general, honing rods are not recommended as using these will cause damage to the edge.聽Honing rods are for western knives. Electric sharpeners and pull through sharpeners should never be used on Japanese kitchen knives.聽

GCash Order Form (for PH)

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Kei Kobayashi SG2 bunka 170mm