# Sharpening Stone Kasumi model 4315-uniw — Japanese whetstone for blade sharpening

**URL:** https://aio.lv/en/product--kasumi-4315-uniw--11385872
**Data updated:** 2026-03-11 12:05 (EET)
**Category:** Knife Sharpeners
**Manufacturer:** Kasumi
**Manufacturer code:** 4315-uniw
**EAN:** 4950586800012
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 56.99 €
**Prices and availability valid until:** 2026-07-29 23:59
**Price without VAT (21%):** 47.10 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--kasumi-4315-uniw--11385872

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 15.07.2026 | free |
| Pickup points | 20.07.2026 | 1.89 EUR |
| Courier delivery to door | 20.07.2026 | 4.99 EUR |

## Summary description

Kasumi Japoński kamień (model 4315-uniw) is a Japanese sharpening stone designed for manual honing and edge maintenance of knives and blades. It provides a stable abrasive surface for restoring cutting edges and improving sharpness. Suitable for kitchen knives, pocket knives and utility blades; used for deburring, refining bevels and routine blade upkeep.

## Long description

Kasumi model 4315-uniw is a Japanese whetstone manufactured for manual blade sharpening and routine edge maintenance. The stone delivers a consistent abrasive surface for restoring cutting edges, refining bevels and removing burrs on a wide range of knives and utility blades. Designed for use on kitchen knives, pocket knives and other handheld cutting tools, the sharpening stone supports controlled abrasion to improve sharpness and prolong blade life.
Advantages
The Japanese whetstone offers a stable grit surface that ensures even wear and predictable sharpening results without aggressive stock removal. Its flat rectangular form provides a comfortable working area for consistent angle control during honing. The stone is suitable for both coarse re-profiling and finer finishing depending on chosen grit and technique, making it versatile for different blade steels and edge conditions.
Suitable for
 Restoring dull kitchen knives and chef’s knives
 Refining edge bevels on pocket knives and outdoor blades
 Deburring and smoothing utility and woodworking blades
 Routine maintenance of high-carbon and stainless steel edges
Key specifications
 Type: Japanese whetstone for manual sharpening
 Intended use: Edge restoration, bevel refinement, deburring
 Form factor: Rectangular stone suitable for hand-held sharpening
 Compatibility: Kitchen knives, pocket knives, utility and woodworking blades
 Performance: Provides controlled abrasion for predictable results
How to use
Soak or wet the stone as recommended for its abrasive type and place it on a stable, non-slip surface. Hold the blade at a consistent angle and draw the edge across the stone with even pressure, repeating strokes until the desired edge forms. Alternate sides regularly to maintain a centered bevel and check progress by feeling for a burr or testing on a suitable cutting test material. After sharpening, remove residual slurry, wipe the blade clean and, if applicable, strop or hone the edge for a finer finish.
Usage recommendations
Use the whetstone on a flat, secure surface and keep the sharpening angle consistent to achieve repeatable results. Begin with a coarser grit for damaged or very dull edges, then progress to finer abrasive surfaces for polishing and refining. Clean and dry the stone after use and store it flat to preserve its surface; periodically flatten the stone if uneven wear appears.

## FAQ

### How much does the Sharpening Stone Kasumi 4315-uniw cost, and is it available for purchase?

The price is 56.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 82 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 15.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Kasumi products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Kasumi service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/11385872/66019628_large.webp