---
product_id: 279698893
title: "Kuniyoshi Chukyokenma, M Rust Eraser, Sabitoru"
brand: "kuniyoshi"
price: "₩68572"
currency: KRW
in_stock: true
url: https://www.desertcart.kr/products/279698893-kuniyoshi-chukyokenma-m-rust-eraser-sabitoru
store_origin: KR
region: South Korea
---

# Soak time: just 10 minutes Perfectly sized for knife blades (1.5"x2.5"x0.5") Medium grit for effective rust removal Kuniyoshi Chukyokenma, M Rust Eraser, Sabitoru

**Brand:** kuniyoshi
**Price:** ₩68572
**Availability:** ✅ In Stock

## Summary

> 🧼 Rust-free knives, zero hassle—clean like a pro!

## Quick Answers

- **What is this?** Kuniyoshi Chukyokenma, M Rust Eraser, Sabitoru by kuniyoshi
- **How much does it cost?** ₩68572 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/279698893-kuniyoshi-chukyokenma-m-rust-eraser-sabitoru)

## Best For

- kuniyoshi enthusiasts

## Why This Product

- Trusted kuniyoshi brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Precision Size:** Compact 1.5"x2.5"x0.5" fits knife blades perfectly
- • **Quick Soak & Clean:** Just 10 minutes in cold water to activate power
- • **Gentle Yet Effective:** Medium grit scrubs rust without damaging your blades
- • **Lightweight & Portable:** Only 30g—carry it anywhere for on-the-go maintenance
- • **Effortless Rust Removal:** Say goodbye to tough rust without scrubbing pain

## Overview

The Kuniyoshi Chukyokenma M Rust Eraser is a compact, medium-grit rust remover designed specifically for knives. Simply soak it in cold water for 10 minutes, then gently scrub away rust without damaging your blades. Lightweight and easy to handle, it offers a pain-free, efficient solution to keep your knives pristine.

## Description

Very friendly product to remove hard rust on knife without painful efforts. Application: Soak the rust extinguisher with cold water for minutes. Gently rub the rusty part of the knife and rinse the knife if the rust is. ; 1.5 x 2.5 x 0.5; medium grit.

## Features

- Very friendly product to remove tough rust on knife without painful effort
- Usage: Soak the rust eraser for ten minutes with cold water
- Scrubs carefully the rusted part of knife and rinse knife when rust is gone.
- 1.5"x2.5"x0.5"
- medium grain

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | CKK |
| Brand | Kuniyoshi |
| Model number | #NA |
| Product Dimensions | 3.81 x 6.35 x 1.27 cm; 30 g |
| Color | Black |
| Shape | rectangular |
| Material Type | Plastic |
| Manufacturer Part Number | #NA |
| Item Weight | 30 g |

## Images

![Kuniyoshi Chukyokenma, M Rust Eraser, Sabitoru - Image 1](https://m.media-amazon.com/images/I/91wy9j48ATL.jpg)
![Kuniyoshi Chukyokenma, M Rust Eraser, Sabitoru - Image 2](https://m.media-amazon.com/images/I/81LoqVsMUPL.jpg)

## Available Options

This product comes in different **Color** options.

## Questions & Answers

**Q: I have an amazing carbon steel knife that is badly tarnished & a shows minor rust. Will this product help with tarnishing? Or just rust?**
A: I use it to clean my sharpening stones. Metal is left on the stone in the form of a black liquid.  To clean your knife I would use WD40 and xxx steel wool. Carbon knives get a patina over time which is normal. This actually protects the blade to some extent. Red rust is bad and should be removed by the method I mentioned above. For just the patina or tarnish you mention you can clean the surface with a green scotch bright pad which is finer then the other colors.
1x Rust eraser is not very course and should not damage your knife. Use light strokes and keep the pad wet.

**Q: I just got 2 used ceramic whetstones at a thrift store that have little wear but both have rust on one side of them. will rust remover work on stones?**
A: These rust erasers are actually made to remove surface rust from knives. They will work to clean the surface of soft waterstones, and the higher the grit, the better they work. They're almost useless on really hard ceramics (Spyderco stones), or on really coarse stones. I own one and regularly use it to clean steel particulate from Shapton Glass, Naniwa Super Stones, and a few others.

**Q: Can i use this on my diamond stones**
A: Yes you can, but its gonna wear your eraser out quickly. Soap and water and maybe a scrub brush is a better idea.

**Q: when should this item be replaced? how long will it probably last?**
A: It all depends on how much you use it. I removed a moderate amount of rust from two Japanese carbon steel blades and it is hard to tell whether I used 1% or 2% of this eraser.

## Frequently Bought Together

- 1 x Rust Eraser Sabitoru M by Kuniyoshi
- KUROBARA 100% Pure Tsubaki Japanese Knife Maintenance Camellia Oil (3.4 oz)
- Rust Eraser Sabitoru Fine

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-02-27*