Masamoto Sohonten KS4216 Petty 165mm – High Carbon Steel Japanese Utility Knife

A refined Masamoto Sohonten KS4216 petty knife, 165mm blade length, made in Japan by one of Tokyo’s most respected traditional knife makers.

This compact Japanese utility knife is ideal for precision work, trimming, peeling, small vegetables, fruit, herbs, and fine kitchen tasks where a gyuto would be too large. The knife features a traditional Japanese wa-handle and a high-carbon steel blade, offering excellent sharpness, control, and cutting feedback.

A clean and elegant piece from the Masamoto Sohonten KS series, suitable both for practical use and for collectors of authentic Japanese kitchen knives.

---

Key features

• Authentic Masamoto Sohonten / 正本総本店 Japanese kitchen knife
• Model: KS4216
• Blade type: Petty / utility knife
• Blade length: 165mm
• Traditional Japanese wa-handle
• High-carbon steel blade
• Lightweight, precise and highly controllable
• Suitable for trimming, peeling, detail work and general small prep
• Original Masamoto box included
• Made in Japan

---

Specifications

---

Description

This Masamoto Sohonten KS4216 petty knife is a compact and highly versatile Japanese kitchen knife designed for precision work.

The petty is one of the most practical secondary knives in a professional or enthusiast kitchen. At 165mm, this model offers enough length for controlled slicing and trimming, while remaining nimble for smaller tasks such as peeling, shaping, cleaning vegetables, portioning fruit, cutting herbs, and working around bones or joints in light prep.

The blade carries the traditional Masamoto Sohonten kanji, with the clean and understated presentation typical of the brand. The knife is supplied with its original Masamoto box, marked KS4216 / 165mm.

Masamoto Sohonten is among the most respected names in Japanese kitchen knives, especially appreciated for its traditional carbon steel blades, professional geometry and long-standing reputation among chefs.

---

Condition

The knife appears to be in unused or near-unused condition, with original box included.

From the photos, the blade looks clean overall, with no obvious chips or major damage visible. As with traditional high-carbon Japanese knives, minor storage marks, light oxidation, or superficial handling marks may be present.

Please review all photos carefully, as they are part of the description.

---

Care instructions

This is a high-carbon steel knife, not stainless steel.

To preserve the blade:

• Dry immediately after use
• Do not leave wet or dirty
• Do not wash in dishwasher
• Avoid acidic foods sitting on the blade for long periods
• Apply a light coat of camellia oil if storing for extended periods
• Sharpen with Japanese whetstones

A natural patina may develop with use. This is normal for carbon steel and can help protect the blade over time.

---

What’s included

• 1 × Masamoto Sohonten KS4216 petty knife, 165mm
• 1 × Original Masamoto box

---

Note for Italian customers

For orders shipped within Italy, the sale of this item is reserved to customers aged 18 or over.

In accordance with applicable Italian regulations on bladed instruments, KALI HOCHO may request age and identity verification before completing the order. The buyer is responsible for using, storing and transporting the knife in compliance with local laws.