THE ONE WE’D BUY FIRST

Your knives are not worn out.
They are just dull.

A dull blade slips, crushes the tomato instead of slicing it, and takes twice the effort.

A whetstone fixes that — if you can hold a steady angle for ten minutes. This one rolls along the edge on a magnetic base that holds the angle for you.

About a minute per knife.

$24.99
Free shipping in the United States, 3 to 7 days from the US warehouse.

See the sharpener

Free shipping in the United States

Every order is tracked, and the tracking number reaches you by email.

Damaged or wrong? We replace it

If it arrives broken, damaged or not what the page described, you get a full refund or a free replacement. We do not take returns for a change of mind.

Encrypted checkout

Card details go straight to the payment processor. They never pass through us and we never see them.

A real person, a real inbox

Utility Masters, Verona, Italy. Write to info@utilitymasters.shop and we reply within one business day.

What the season asks for

Halloween is coming.
Halloween · 32 days left

Halloween is coming.

A resin skull lit from inside through the cracks, in two versions. It ships from our supplier, so it takes 6 to 12 days — order it in October, not on the thirtieth.

$26.99 See the lamp
Then comes the winter.
Before the cold

Then comes the winter.

A sherpa zip-up with a second zip down the middle: it opens into a lined pouch so the baby travels inside your jacket instead of against the wind. It is not a carrier — it goes over the one you already use.

$49.99 See the hoodie

Three passes, one minute

The blade held against the angled magnetic base

Clip the blade on

N52 magnets hold the knife. One face sets 15° for a finer edge, the other 20° for knives that need to hold their edge longer.

Rolling the diamond disc along the edge

Roll the diamond disc

A few passes each side. The magnet keeps the angle, so you are not trying to hold it steady yourself — the part most people get wrong.

A cucumber sliced cleanly after sharpening

Finish on the fine side

The fine disc polishes the edge smooth. Most knives in a home kitchen only ever need this one.

What arrives, and how big it is

The rolling sharpener and the magnetic base in hand

The rolling sharpener and the magnetic angle base — the two faces are 15° and 20°. That is the whole thing: no leather strop, no honing rod, and no presentation box. It arrives in the supplier’s plain packaging.

Dimensions of the roller and the base

Roller 5.5 × 8.4 cm, base 10.4 × 5.7 × 2.4 cm, about 380 g the pair. It lives in a drawer, not on the counter.

It is made for straight-edged kitchen knives. It will not sharpen serrated blades, scissors or ceramic knives — and we would rather say so here than let you find out at home.

Get the sharpener

The rest of the shop

Everything else we sell, each thing solving one problem. Same shipping, same terms.

Everything in the shop

View all

Rolling Knife Sharpener with 15° and 20° Magnetic Angle Base

Rolling Knife Sharpener with 15° and 20° Magnetic Angle Base

$24.99

Freestanding Metal Coat Rack with 11 Hooks on Three Levels for Entryway and Office

Freestanding Metal Coat Rack with 11 Hooks on Three Levels for Entryway and Office

$44.99

Handheld Steam Cleaner, 2500W Pressurized Steamer with 1.2L Tank and 12 Accessories

Handheld Steam Cleaner, 2500W Pressurized Steamer with 1.2L Tank and 12 Accessories

$39.99

10-Tier Stackable Shoe Rack, Long Shoe Shelf Organizer for Hallway, Entryway and Closet

10-Tier Stackable Shoe Rack, Long Shoe Shelf Organizer for Hallway, Entryway and Closet

$36.99

Rechargeable Electric Air Duster, 150,000 RPM with 4 Speeds and LED Light

Rechargeable Electric Air Duster, 150,000 RPM with 4 Speeds and LED Light

$34.99

UV Toothbrush Sterilizer Holder, Wall Mounted for 5 Brushes with 6-Minute Timer

UV Toothbrush Sterilizer Holder, Wall Mounted for 5 Brushes with 6-Minute Timer

$32.99

8-in-1 Mandoline Slicer with Catch Bowl, Grater and Strainer

8-in-1 Mandoline Slicer with Catch Bowl, Grater and Strainer

$28.99

Filtering Shower Head with Replaceable Cartridge for Hard Water and Chlorine

Filtering Shower Head with Replaceable Cartridge for Hard Water and Chlorine

$27.99

Halloween Skull Lamp, Lava-Crack Resin with Warm LED Glow

Halloween Skull Lamp, Lava-Crack Resin with Warm LED Glow

$26.99

Smart Posture Trainer, Adjustable Back Brace with Angle Sensor and Vibration Reminder

Smart Posture Trainer, Adjustable Back Brace with Angle Sensor and Vibration Reminder

$24.99

Babywearing Fleece Hoodie with Zip-Open Baby Pouch

Babywearing Fleece Hoodie with Zip-Open Baby Pouch

$49.99

Starry Night Light Projector, USB Gooseneck Lamp with 12 Slides

Starry Night Light Projector, USB Gooseneck Lamp with 12 Slides

$19.99

The questions we get

How long does it take to arrive?

Three to seven days from the US warehouse. Six to twelve for anything that leaves our supplier directly. Every product page says which of the two it is, before you buy.

And if it arrives broken?

We replace it or refund you, shipping included. A photo is all we need. We do not take returns for a change of mind, and we say so here rather than in the small print.

Why so few products?

Because each one has to solve a problem to be here. We have turned down hundreds that would have made money and been of no use to anyone.

Where does the stock come from?

From our warehouse in the United States, or straight from the supplier, depending on the product. We do not pretend to own a warehouse of our own.

We choose one product at a time and check it against what the supplier actually ships — the size, what is in the box, what it does and what it does not. If the page says it, the product does it. If it turns out we were wrong, we make it right.