1 store* Image from Hasu-Seizo
from$799
Isamitsu Hamono · Petty (Utility Knife)
Isamitsu Hamono Shirogami #1 Petty 135mm
listed price$519 USD
at Hasu-Seizo · United States
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* Image from Hasu-Seizo · Request removal
Every store, in USD
Price comparison
Lowest listed price first · every store converted to USD
| Retailer | Price | Shipping | Last checked | Store link |
|---|---|---|---|---|
🇺🇸Hasu-SeizoLowest listed price | $519 USD | Free shipping within the USShips to US, CA, IL | Go to store |
These are product prices as the stores listed them at the check date shown, not delivered totals: shipping, taxes and import fees depend on where you live, and stock can change after a check. Prices in other currencies are converted at the European Central Bank rate of 30 Oct 2026. Each price was matched to this exact version of the knife, listed as in stock, and checked within the last 48 hours. How we check · Terms
Average price
Average listed price across all stores, one point per month, in USD
A new point is added on the 1st of each month.
Specifications
- Maker
- Isamitsu
- Made in
- Ibaraki Prefecture, Japan
- Steel
- Shirogami #1 (White Steel #1)
- Finish
- Kurouchi
- Handle
- Western (yo)
- Blade length
- 135 mm
- Weight
- 94 g
- Bevel
- double
Other sizes and handles in this line
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2 stores* Image from Seisuke Knife Portland
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1 store* Image from Hasu-Seizo
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What to know before you buy
About this knife
- Petty knives of this 135mm length are small, for detail work and compact boards.
- It has a Western-style (yo) handle, the kind most cooks outside Japan are used to.
- Shirogami #1 (White #1) is a carbon steel that rusts and stains if it is left wet, so it is wiped dry after every use.
- It is double-bevel (sharpened on both sides), so it works for left- and right-handed cooks.
Limits to know
- Carbon steel develops a patina and can rust; it is not for a knife that sits wet in the sink.
Written from this knife's catalog record (steel, handle, length, grind). Knife Fit has not tested it; see how we work.
Good to know for beginners
A petty is the small knife for the jobs a chef's knife is too big for: peeling, trimming, shallots, herbs and fruit in hand. 135mm is the most versatile petty length. Shirogami #1 (White #1) is carbon steel: very sharp and easy to sharpen, but wipe it dry while you cook or it will rust. The Japanese wa handle is light and puts the balance toward the blade.
In the glossary: Petty · Shirogami #1 (White #1) · Western handle
Newest price check for this knife: . Catalog data last refreshed 2 Nov 2026. Knife Fit compares prices only and does not sell knives.