Toggle Nav
0333 355 0535
My Account
Login Register Now
Shopping Cart
Advanced Search
main product photo
33% OFF

Jarvis

Catering Specialist
Reset

Hello! 👋

Hi there, I'm Jarvis! I see you're looking at the Diamond Knife Sharpener | Professional Knife Sharpening Tool | 25.5cm | Wusthof DN930. How can I help you with the technical specs or suitability for your business today?

Jarvis is an AI assistant and may occasionally provide incorrect details. To ensure your equipment fits and functions perfectly, we recommend verifying all critical specifications-including dimensions, power requirements, and compatibility-with our expert sales team prior to purchase.For orders or stock, call 0333 355 0535

How can we help? Choose an option below

Select an option to get started. We're here to help!

Product Questions

Specs, suitability, features & comparisons

Other Enquiries

Delivery, warranty, invoices & customer service

Product questions are answered instantly. Our support team typically responds within minutes.

Wusthof In Stock

Diamond Knife Sharpener | Professional Knife Sharpening Tool | 25.5cm | Wusthof DN930

SKU: DN930
£91.38 / exc vat
£109.66/ inc vat
  • Microcrystalline Diamond Coating
  • Durable Carbon Steel Core
  • Soft, Comfortable Handle
  • Integrated Finger Guard
Easy Equipment Age restiction

This is an age restricted item.

We will require proof of ID (driving license, passport). Please upload at the checkout.

Order by 12pm

Price Match

UK Warehouse

Have a quick question about this product?
Ask instantly →
Features Overview Specifications Case Study Reviews Installation Buying Guide FAQ

Product Overview

Getting a truly professional, razor-sharp edge on your kitchen knives just became a whole lot easier. This isn't just another sharpening steel; it's a high-performance Wusthof diamond knife sharpener, precision-engineered in Germany. Designed for chefs, butchers, and  serious cooks who understand that a sharp knife is the most important tool in the kitchen, this rod uses a microcrystalline diamond coating to restore a perfect edge with just a few effortless strokes.

Perfect for any professional environment, from bustling restaurant kitchens to high-street butchers, the Wusthof DN930 sharpener is built for speed, safety, and  longevity. The incredibly durable carbon steel core means it won't bend or break, while the comfortable, soft-grip handle and  finger guard give you the confidence to sharpen your knives quickly and  securely. It’s the ideal tool for daily maintenance, keeping your blades in peak condition day in, day out.

If you're tired of dull knives slowing you down and  compromising your cuts, this is the upgrade you need. The 25.5cm diamond sharpening rod provides the perfect length for everything from paring knives to large chef's knives, ensuring a consistent and  phenomenally sharp finish every single time. Stop struggling and  start sharpening like a pro.

Key Features and  Benefits

  • Microcrystalline Diamond Coating: Effortlessly creates a razor-sharp finish on your blades.
  • Durable Carbon Steel Core: Built to last for years in a demanding kitchen environment.
  • Soft, Comfortable Handle: Gives you a secure, non-slip grip for better control.
  • Integrated Finger Guard: Offers crucial protection against slips for safer sharpening.
  • 10-Inch Working Length: Provides a long, smooth stroke for sharpening knives of all sizes.
  • Fine Abrasive Surface: Perfect for daily honing and  maintaining a beautifully sharp edge.
  • Convenient Handle Hoop: Allows for easy hanging storage, keeping your tool handy.
  • Lightweight Construction: Easy to handle and  manoeuvre without causing hand fatigue.

Technical Specifications

  • Brand: Wusthof
  • SKU: DN930
  • Total Length: 412mm
  • Working Length: 260mm / 10"
  • Depth: 30mm
  • Material: Carbon Steel Core with Microcrystalline Diamond Coating
  • Weight: 0.36kg
  • Colour: Black
  • Purpose: Fine Sharpening & Honing

Expert Review and  Insights

The Wusthof name carries a lot of weight, and  this sharpener lives up to the reputation. It’s a beautifully balanced tool that feels solid in the hand. The diamond coating is aggressive enough to put a fresh edge on a blade quickly but fine enough for regular honing without eating away at your knives. It's a proper piece of professional kit.

Sophie Brooks – Chef Tools Expert View Profile →

  • Pro: Exceptionally fast. It restores a dull edge in a fraction of the time.
  • Con: Less forgiving for novices; removes metal faster than a standard steel.

Case Study: Real Business, Real Results

"The Gilded Truffle," a high-end bistro in York, was struggling with knife performance. Their existing sharpening steels were merely realigning edges, not truly sharpening them, leading to staff frustration and  slower prep times.

"Our knives are our livelihood, and  they were letting us down. The Wusthof rod brought our entire set back to life. Prep is quicker, cleaner, and  honestly, much safer now. The difference in performance is night and  day."

Eleanor Vance – Head Chef

After implementation, the kitchen reported a significant improvement in efficiency, estimating a 15% reduction in vegetable and  meat preparation times due to consistently sharp, reliable blades.

Installation and  Maintenance Guide

Getting the Technique Right

  • Hold the sharpener firmly by its handle, with the tip resting on a stable, non-slip surface like a tea towel on a counter.
  • Maintain a consistent angle of 15-20 degrees between your knife blade and  the rod.
  • Draw the blade down and  across the rod, from heel to tip, in one smooth motion.
  • Alternate sides with each stroke, using light and  even pressure. 5-10 strokes per side is usually plenty.

Keeping It Going

  • After each use, wipe the rod with a damp, soft cloth to remove any metal filings.
  • Never wash your diamond sharpener in a dishwasher or use oily substances on it.
  • Store it safely using the built-in handle hoop or in a knife block to protect the diamond surface.
  • Periodically clean with a mild abrasive cleaner or a special eraser block if it becomes clogged.

Buying Guide: Choosing the Right Knife Sharpener

Not sure which sharpener is the right fit for your kitchen? Here’s a quick rundown to help you decide.

Steel vs. Diamond vs. Ceramic

A 'steel' only hones (realigns) an edge. Diamond and  ceramic sharpen by removing metal. Diamond is fast and  aggressive, ideal for restoring an edge, while ceramic is great for super-fine finishing.

Grit & Fineness

Like sandpaper, sharpeners have different grits. Coarse grits are for repairing damaged blades, while fine grits, like on this Wusthof rod, are for regular maintenance and  achieving a razor-sharp finish.

Handle and  Safety

A comfortable, non-slip handle is a must for control. A substantial finger guard is a non-negotiable safety feature that separates professional tools from amateur ones.

Length Matters

A good rule of thumb is to choose a sharpening rod that is at least as long as the blade of your longest knife. This ensures you can sharpen the entire edge in one smooth stroke.

Storage is Key

Protect your investment. A sharpener with a hanging loop or one that fits in a dedicated block is less likely to get damaged by knocking against other tools in a drawer.

See all Knife Sharpeners

Frequently Asked Questions

Q: Is this for sharpening or honing?

A: It's technically a fine sharpener. It's more effective than a traditional honing steel as it uses a diamond abrasive to create a new edge, making it perfect for rapid, regular maintenance.

Q: Can I use this on serrated knives?

A: No, this type of rod-shaped sharpener is designed exclusively for straight-edged blades.

Q: What is the best angle to use when sharpening?

A: For most European-style kitchen knives, like Wusthof, a 15-20 degree angle between the blade and  the rod will give you the best results.

Q: How many strokes are needed to sharpen a knife?

A: For a blade that's just a bit dull, 5-8 alternating strokes per side is typically enough to restore a fantastically sharp edge.

Q: How do I clean the Wusthof DN930 sharpener?

A: Simply wipe it down with a damp cloth after use to remove the tiny metal filings. Avoid harsh soaps or putting it in a dishwasher.

Q: Will the diamond coating wear off?

A: With proper use and  care, the microcrystalline diamond surface is exceptionally durable and  designed to last for many years, even in a busy commercial kitchen.

Q: Is this sharpener suitable for very hard Japanese knives?

A: While it can be used, many premium Japanese knives have a more acute angle (around 15 degrees) and  respond best to whetstones. This tool excels with Western-style knives.

Q: What’s the main advantage of this over a cheaper diamond rod?

A: The quality, density, and  evenness of the Wusthof diamond coating. This ensures a consistent, smooth sharpening action and  far greater longevity than budget alternatives.

What Customers Are Saying

"An absolutely brilliant piece of kit. It feels solid, well-balanced, and  puts a wicked edge on my knives in seconds. Worth every penny."

Mark R. – Gastropub Owner, Cardiff

"You really get what you pay for with Wusthof. So much better than the cheap steel I had before. Just be gentle, this professional diamond knife sharpening tool is very effective!"

Chloe T. – Head Chef, Manchester

"The perfect tool for daily honing in our shop. My knives have never felt sharper or more reliable. A must-have for any professional butcher."

David P. – Butcher, London

Add Review

The Wusthof Legacy: An Edge You Can Trust

When you choose a Wusthof tool, you're investing in over 200 years of German engineering excellence. Forged in Solingen, the 'City of Blades,' every product carries a legacy of uncompromising quality. This Wusthof diamond knife sharpener is more than just a piece of steel with diamond dust; it’s a promise of consistency, reliability, and  safety for your kitchen. In a professional environment, a consistently sharp knife reduces the risk of accidents, minimises food waste through cleaner cuts, and  boosts staff morale and  efficiency. This isn’t a disposable gadget that will wear out in a year. It's a long-term investment in your craft, designed to withstand the rigours of daily service and  deliver a perfect edge, every single time. That's the peace of mind you get with Wusthof.

Explore more from Wusthof

How a Diamond Coating Gives You a Better Edge

Ever wondered what makes a diamond sharpener so effective? It's all about hardness. A traditional honing 'steel' doesn't actually sharpen your knife; it just realigns the existing microscopic edge, which has been bent out of shape through use. It’s like straightening a bent paperclip.

This Wusthof knife sharpening rod, however, is coated in microcrystalline diamonds—the hardest natural substance on Earth. Instead of just pushing the edge back into place, it gently shaves off a tiny amount of metal to create a brand new, perfectly formed, and  incredibly sharp cutting edge. Think of it as the difference between combing messy hair back into place (honing) versus getting a quick, precise trim to make it perfect again (sharpening). This is why it restores a dull knife so much faster and  more effectively.

Who Should Buy This?

  • Fine Dining Restaurants: For head chefs who demand immaculate precision for intricate garnishes and  delicate protein prep.
  • Local Butcher Shops: Essential for maintaining a perfectly sharp edge for clean, efficient, and  professional cuts of meat all day.
  • Busy Catering Kitchens: An indispensable tool for rapidly sharpening dozens of knives during high-volume event preparation.
  • Culinary Schools & Colleges: The perfect professional-grade commercial kitchen knife sharpener for teaching students correct and  effective knife care.
Find equipment tailored to your type of business:

Shop for Cafes Shop for Hotels Shop for Restaurants View All Business Types

You Might Also Like

Why Choose EasyEquipment?

  • Trusted for 50+ Years

    We've been kitting out UK kitchens for half a century—we know our onions.

  • Speedy & Free Delivery

    Get your gear fast with free UK mainland delivery, often as soon as the next day.

  • Price Match Promise

    Find it for less elsewhere? We'll match the price, no quibbles or fuss.

  • Real UK Support

    Got a question? Our friendly, UK-based team is on the phone, ready to help you out.

Ready to Order?

Bring your knives back to their absolute best. Order your Wusthof Diamond Knife Sharpener today for a consistently perfect edge in your kitchen.

Add to Cart Call Us for Advice

Customer Reviews

How do you rate this product?

Your voice makes a difference! We value your honest feedback and would love to hear about your experience with our products.

Please take a moment to leave a review and help us grow together.