---
product_id: 42140349
title: "Kota Japan 12 in. Diamond Carbon Steel Professional Knife Sharpener Rod | Kitchen, Home or Hunting | Master Chef, Hunter or Home Gourmet Blade Sharpening Rod or Stick"
brand: "kota japan"
price: "1218076₫"
currency: VND
in_stock: true
reviews_count: 8
category: "Kota Japan"
url: https://www.desertcart.vn/products/42140349-kota-japan-12-in-diamond-carbon-steel-professional-knife-sharpener
store_origin: VN
region: Vietnam
---

# Diamond electroplated ultra-fine grit Light touch, less force needed Oval shape for max sharpening efficiency Kota Japan 12 in. Diamond Carbon Steel Professional Knife Sharpener Rod | Kitchen, Home or Hunting | Master Chef, Hunter or Home Gourmet Blade Sharpening Rod or Stick

**Brand:** kota japan
**Price:** 1218076₫
**Availability:** ✅ In Stock

## Summary

> 💎 Sharpen Like a Pro, Slice Like a Boss

## Quick Answers

- **What is this?** Kota Japan 12 in. Diamond Carbon Steel Professional Knife Sharpener Rod | Kitchen, Home or Hunting | Master Chef, Hunter or Home Gourmet Blade Sharpening Rod or Stick by kota japan
- **How much does it cost?** 1218076₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/42140349-kota-japan-12-in-diamond-carbon-steel-professional-knife-sharpener)

## Best For

- kota japan enthusiasts

## Why This Product

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

## Key Features

- • **Lifetime Confidence:** Backed by an unconditional lifetime guarantee and trusted by pros worldwide
- • **Versatile & Durable:** Sharpens everything from kitchen knives to hunting blades with industrial-grade carbon steel core
- • **Effortless Sharpening:** Requires minimal pressure—perfect for quick, durable blade restoration
- • **Ergonomic Oval Design:** Optimized shape for faster, more consistent sharpening strokes
- • **Precision Diamond Surface:** Ultra-fine diamond coating ensures razor-sharp edges every time

## Overview

The Kota Japan 12-inch Diamond Carbon Steel Sharpener Rod features a patented ultra-fine diamond electroplated surface on an ergonomic oval rod, delivering professional-grade sharpening with less effort. Designed for kitchen chefs, hunters, and home gourmets, it efficiently restores dull blades made from carbon steel, titanium, ceramics, and more. Lightweight yet durable, it offers fast, precise edge reconditioning backed by a lifetime guarantee, making it an essential tool for anyone serious about blade performance.

## Description

EXPERIENCE A NEW WAY TO SHARPEN KNIVES!! Kota Japan has been the pioneer and originator of diamond sharpening tools. Our patented bonding process and modern technology allows us to produce the finest quality sharpening products at an affordable price. Our process has often been imitated but never duplicated. Kota Japan’s unique blend of industrial diamonds combined with our patented bonding process gives you the hardest, most durable, longest lasting surface available. Because of this you are able to easily sharpen carbide, tool steel, titanium, ceramics and most any super hard material including the newer materials being used by most knife manufacturers. Kota Japan manufactures the widest variety of diamond sharpening tools available. This allows you to pick and choose the sharpener that will best serve your needs. No other manufacturer offers the choices we do. We have items for use in the kitchen, shop or field, servicing the outdoor, DIY, machine tool, wood working/wood carving, culinary/food service and other markets. SHARPENING INSTRUCTION Place the plastic tip of the sharpening rod on a solid surface. Apply lightly downward pressure to avoid slipping during use. Place heel of your blade at the top of the sharpening rod at a 20 degree angle. Sharpen the knife from heel to tip and repeat 2 - 3 times, then turn to the other side of the knife until blade is sharp. Clean the knife with water and dry it after use. Clean the knife sharpener with non-abrasive brush. .

Review: Affordable, effective, durable, easy to use - I keep this in a kitchen drawer to go "beyond" what a honing steel will do. Besides realigning the blade, this takes off material, so it actually "sharpens" your knives. I don't use it all the time, but if an edge is starting to wear a little, I'll give this a twirl for a quick fix. Eventually, knives have to be properly sharpened if you want them to last and be sharp, so I will eventually move them to a series of diamond plates in various grits and then to a whet stone and a strop. But as I said, if you're knife is slightly dull and needs a quick touch up, this is a wonderful magic wand. After using it a few times on the same knife, a proper sharpening will be in order. But I love this for fast and convenient. I find it sturdy, durable, well made, comfortable to hold and the grit size works great for me. I am on my second one, though I now use my "old" one AFTER the new one as it has lost some abrasives and offers a reduced grit (in theory anyway).
Review: Kota Diamond Rod is an Aggressive Knife Sharpener - I’m an experienced knife sharpener having done it for 50 years. Over the years there has been many designs for knife sharpeners, most not very good. Fortunately the Kota Diamond “stick” sharpener is quite good, but you should understand what it is and what it is not. The Kota sharpener is appropriate for when you want to do a major reconditioning of a knife blade. A knife that has been abused and has no sharp edge at all. The Kota is impregnated with diamond chips that remove lots of metal fast. It is not a “touch up” sharpener that you use on an already sharp knife where you want to keep that sharp edge at its best. For that purpose you want a fine grain ceramic sharpening stick. Green Elephant is excellent for that purpose. C.S.

## Features

- ✔️ DIAMOND ELECTOPLATING: State-of-the-art manufacturing for precision Kitchen, Home or Hunting blade sharpening. Ensures efficient and sharp sharpening of dull knives and tools.
- ✔️ OVAL SHAPE: This knife sharpener rod is designed to ensure higher sharpening efficiency.
- ✔️ LIGHTER TOUCH: Requires much less force than most sharpening steel. 'Easy-does-it" leads to long lasting results..
- ✔️ ELEGANT DESIGN: A pleasing and attractive addition to any kitchen or work area,
- ✔️ UNCONDITIONAL LIFETIME GUARANTEE | 100% TESTED | BUY WITH CONFIDENCE!! Visit KotaJapan to contact our friendly Customer Service in Sunny Arizona, or contact us through your desertcart order screen.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B06W9J9RTN |
| Best Sellers Rank | #5,226 in Kitchen & Dining ( See Top 100 in Kitchen & Dining ) #20 in Knife Sharpeners |
| Brand | Kota Japan |
| Color | Silver |
| Customer Reviews | 4.4 4.4 out of 5 stars (7,658) |
| Date First Available | February 14, 2017 |
| Grit Type | Ultra Fine |
| Is Discontinued By Manufacturer | No |
| Item Weight | 6.7 ounces |
| Item model number | NG-XOK2-A3GA |
| Manufacturer | Grade-A Global, LLC |
| Material | Carbon Steel |
| Number of Items | 1 |
| Product Dimensions | 18"L x 1.5"W x 2"H |

## Product Details

- **Brand:** Kota Japan
- **Color:** Silver
- **Grit Type:** Ultra Fine
- **Item Weight:** 191 Grams
- **Manufacturer:** Grade-A Global, LLC
- **Material:** Carbon Steel
- **Number of Items:** 1
- **Product Dimensions:** 18"L x 1.5"W x 2"H

## Images

![Kota Japan 12 in. Diamond Carbon Steel Professional Knife Sharpener Rod | Kitchen, Home or Hunting | Master Chef, Hunter or Home Gourmet Blade Sharpening Rod or Stick - Image 1](https://m.media-amazon.com/images/I/71zTi2zpLjL.jpg)

## Questions & Answers

**Q: is this honing rod made in Japan?**
A: The seller says it's made in China; the ad says it's made in the USA; and the name of it is Kota Japan!!!

**Q: Is the steel rod smooth or groved?**
A: Think of two operations - in one, any stone and almost all diamond products, you are removing more or less material. This will leave a "scratch pattern". As the abrasive gets finer and finer, you remove the deeper scratches and leave finer ones, getting finer until the edge is 'sublime.'

The grain of the edge's metal will eventually dictate how sharp it can get, and you can verify this with a microscope. What a 'steel' does ideally, when used correctly, is to compact the edge's material, and removes the finest wire edge or swarf left by a stone. Stones and diamonds remove materia, steels refine a sharpened edge - for most knives. 

Chisels, plane or planer and jointer blades would be hard to accurize with most rod type steels. For such wider, very straight edges, either use a special purpose fixture and machine, or at least a jig and probably a diamond-on-machined-steel-plate untile straight, even, and the same size as the other blades on the cutterhead, then use finer diamond plates, machines steps, or work into polishing in a way that doesn't roll the edge. Some HSS can be made quite sharp.

**Q: it's this for honing or sharpening? people are using the words like they are interchangeable.**
A: A regular steel, steel is for honing. When it's a diamond "steel" it takes a bit of metal off the knife, so it also sharpens. it does NOT replace a proper stone for sharpening, either, oil, water, or diamond. But, it could lesson the number of times you'll need to use a stone.  I was really quite impressed with the one I got, especially for the money. Touches up the edge beautifully. NOTE: My knives never get really dull. If you have a dull knife you need to use a stone.

**Q: does the knife need to be honed after using this sharpener?**
A: Technically yes. 
This is for extra fine sharpening and should be honed with a 'groved' honing steel and/or strop after and between uses, however the knife is ready to use without honing.
A properly sharpened and honed knife edge is like a fine strip of foil that will curve over with use. A honing steel or strop will straighten the foil edge until it wears away. It than needs to be sharpened again.
Using this as a sharpener without a honing, than using the knife will leave the blade with an extremely fine 'saturated like' edge, but it is still really sharp.
While this will make a low quality steel knife sharp the edge wont last as long as a better, higher quality steel knife. 
Nothing will help a poor quality steel knife no matter the brand name.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Affordable, effective, durable, easy to use
*by J***B on April 23, 2025*

I keep this in a kitchen drawer to go "beyond" what a honing steel will do. Besides realigning the blade, this takes off material, so it actually "sharpens" your knives. I don't use it all the time, but if an edge is starting to wear a little, I'll give this a twirl for a quick fix. Eventually, knives have to be properly sharpened if you want them to last and be sharp, so I will eventually move them to a series of diamond plates in various grits and then to a whet stone and a strop. But as I said, if you're knife is slightly dull and needs a quick touch up, this is a wonderful magic wand. After using it a few times on the same knife, a proper sharpening will be in order. But I love this for fast and convenient. I find it sturdy, durable, well made, comfortable to hold and the grit size works great for me. I am on my second one, though I now use my "old" one AFTER the new one as it has lost some abrasives and offers a reduced grit (in theory anyway).

### ⭐⭐⭐⭐⭐ Kota Diamond Rod is an Aggressive Knife Sharpener
*by C***S on June 5, 2025*

I’m an experienced knife sharpener having done it for 50 years. Over the years there has been many designs for knife sharpeners, most not very good. Fortunately the Kota Diamond “stick” sharpener is quite good, but you should understand what it is and what it is not. The Kota sharpener is appropriate for when you want to do a major reconditioning of a knife blade. A knife that has been abused and has no sharp edge at all. The Kota is impregnated with diamond chips that remove lots of metal fast. It is not a “touch up” sharpener that you use on an already sharp knife where you want to keep that sharp edge at its best. For that purpose you want a fine grain ceramic sharpening stick. Green Elephant is excellent for that purpose. C.S.

### ⭐⭐⭐⭐ Great for bread knives
*by K***I on August 23, 2024*

Our bread knife left a lot to be desired so I bought a new bread knife, thinking it would solve the problem - the new bread knife was just as frustrating - more so actually as it was a larger knife, and still wasn't up to task. Since I've gotten pretty good at sharpening non-serrated knives after practicing and watching a lot of sharpening videos, I wondered if I could do the same for our bread knives. I picked this one because all the diamond rods seemed to be about the same, and found that the diamond coating is not as uniform as, for example, my Sharpal diamond whetstone, and it seems to be less durable, but what I cared about was the result. I used the rod on the small, cheap bread knife first, and ohmygosh what a diference; after a few passes on the rod I got the hang of aligning the serrations with sections of the curve of the rod, and made only 1-2 passes, and since stropping isn't much of an option, I used vegetables to try to remove the burr, and then did a test cut on some soft bread. It was a game changer. The cheap faberware bread knife worked. Now, for the larger, "good" bread knife: I sharpened it in the same manner, only with this knife I made a few passes for each serration, did what I could to remove the burr by slicing up some harder veggies, and did a cherry tomato drop test; it sliced most of the way through a cherry tomato held a few inches above the blade. I then sliced some soft bread and a bagel. Delightful; it cut right through with little resistance, and made few crumbs. Bottom line: The rod was well with the purchase. Will it be durable? Well, I already see wear on the rod after sharpening just two knives, so I'd have to say no, it is not durable, and the reviews mentioning chipping and peeling plating does tend to confirm my findings, but this rod is cheap, and it solved the problem with our bread knives, and serrated knives need sharpening so rarely that even as cheaply as these are made, the rod is likely to last us at least a few years. Docking 1 star due to the un-uniform diamond coating, but otherwise the rod is fantastic for the price.

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-03-11*