Underground Chef | Rolling Knife Sharpener

Does Your Knife Pass the Tomato Test?

When your knife starts slipping, squashing food or making preparation harder than it should be, it is probably time to restore the edge. Effortless prep starts here.

Shop Sharpeners
Free Delivery AU Wide
Chef Ian's Guidance Included
Chef using a sharp knife in the kitchen

See the Tomato Test for Yourself

A properly sharpened knife should slice cleanly through the skin of a tomato without crushing it, tearing it or forcing you to press down.

A sharper knife glides through the tomato cleanly, with less pressure and greater control.

The Underground Chef Rolling Knife Sharpener gives home cooks a simple and controlled way to sharpen their kitchen knives—without mastering a whetstone or sending them away to be professionally sharpened.

Don't just take our word for it...

"Hello Chef, I received my knife sharpener yesterday and have sharpened a couple of my fav knives so far and it does what you say. The knives are nice and sharp so will start on the rest of my knives soon. Thank you once again."

- Liz M.

"I picked my most blunt knife as I knew I would see the results quickest with that one. I followed your little video exactly and wow! The Knife sliced through my meat like butter. I sharpened all my others with the very same results..."

- Janine A. 

Choose the Option That Suits You

No discount code required. No freight added at checkout.

Chef-Tested Rolling Knife Sharpener

Chef-Tested Rolling Knife Sharpener

Sharp knives make cooking safer, easier, and far more enjoyable — and this rolling knife sharpener helps you bring back a clean, reliable edge without the fuss. Designed for serious home cooks who want better results without mastering whetstones, it uses a magnetic angle guide, diamond abrasive discs, and a simple rolling action to sharpen with consistency and control. Perfect for protecting good knives, reducing kitchen frustration, and making everyday slicing, chopping, and prep feel effortless again.
AUD 87.50
The Chef-Tested Rolling Knife Sharpener Duo - Sharpening Upgrade Pack

The Chef-Tested Rolling Knife Sharpener Duo - Sharpening Upgrade Pack

Two complete sharpening sets, each with an additional #3000 finishing disc for an even finer finish. Keep one at home and one in the caravan or holiday home—or give one as a genuinely useful gift. What’s inside: 2 Rolling Knife Sharpeners — usually $87.50 each 2 additional #3000 Finishing Discs — usually $25 each 2 instruction guides with Chef Ian’s knife-care tips 2 rubber cleaning erasers
AUD 170.00 AUD 225.00

A More Approachable Way to Sharpen at Home

Place the magnetic support on a flat, stable surface. Secure your knife against the magnetic support at the appropriate angle, then roll the sharpening disc smoothly along the edge.

Magnetic block showing 15 and 20 degree angles

1. Choose the Angle

15°: Commonly used for many Japanese-style knives and finer cutting edges.

20°: Commonly used for many European-style kitchen knives and more robust edges.

Using the diamond sharpening disc

2. Diamond Disc

Use the coarser diamond sharpening disc to restore an edge that has become noticeably blunt.

Using the ceramic honing disc

3. Ceramic Honing

Flip the roller and use the finer ceramic honing disc to refine and smooth the sharpened edge.

Your Home Knife Care Kit

Everything you need to maintain a professional edge.

  • 1 Rolling Knife Sharpener
  • 1 magnetic knife support (15° & 20°)
  • 1 Diamond sharpening disc
  • 1 Ceramic honing disc
  • Chef Ian’s step-by-step video demo
  • Knife-angle guidance
  • 5 Secrets to Keep Your Knives Sharp
  • Access to Underground Chef advice

Chef-Led Knife Care Without the Guesswork

After almost five decades in professional kitchens, Chef Ian understands how much difference a properly maintained knife makes.

A sharp knife makes preparation faster, cleaner and more enjoyable. It also reduces the temptation to force the blade through food using unnecessary pressure.

But Ian also understands why many home cooks avoid sharpening their own knives. The Rolling Knife Sharpener provides an accessible option for people who want to care for their knives at home without learning a complicated sharpening process.

Your purchase includes Ian’s demonstration and knife-care guidance, so you are not simply buying a piece of equipment and being left to work it out alone.

Chef Ian in a professional kitchen
A beautifully wrapped gift box on a kitchen counter next to a sharp chef knife and fresh vegetables

A Gift They Will Genuinely Use

It can be difficult to find a present for someone who already has everything they need. The Rolling Knife Sharpener is practical, easy to demonstrate and useful every time they prepare a meal.

It is a particularly thoughtful gift for:

  • Home cooks & parents who enjoy cooking
  • Adult children setting up a home
  • Caravan and motorhome owners
  • The person whose blunt knives you notice every visit!

It is more personal than another gift card—and far less likely to be forgotten in a drawer.

Frequently Asked Questions

Will it work with every knife?
It is designed for many straight-edged kitchen knives. It is not intended for serrated knives, scissors or blades whose shape prevents them from sitting securely against the magnetic support.
Which angle should I use?
The correct angle depends on the style and manufacturer of the knife. Many Japanese-style knives use a finer angle (15°), while many European-style knives use a more robust angle (20°). Still unsure? Simply send a photo of your knife to Ian, and he will be happy to help.
Do I need to use both discs?
The Diamond sharpening disc restores the edge of a blunt knife. The Ceramic honing disc refines and smooths that edge. A knife that only needs light maintenance may not always require extensive work with the diamond disc.
Is it difficult to use?
No. The sharpening angles are already set, the strong magnetic base holds your knife securely in place. Simply roll the diamond disc along the blade to sharpen it, flip the roller over, and use the ceramic disc to refine the edge. No complicated technique and no guesswork—just roll, flip and finish.
Is delivery included?
Yes. The advertised price is the complete delivered price for standard delivery Australia wide. No discount code is required and freight will not be added at checkout.

Put Your Knife to the Test

Take a ripe tomato and try slicing through the skin without pressing down. Does your knife glide through cleanly—or slip, squash and struggle? A sharper knife can transform everyday preparation.

Choose Your Sharpener

No code. No unexpected freight charges. Chef Ian’s guidance included.