The **DMT Diamond Sharpening Steel DS4F** is an extra-large sharpening steel to quickly sharpen your blunt knives. That extra length is great if you need to sharpen large kitchen knives. The sharpening steel has a diameter of 10 mm. The cap on the tip of the sharpening steel ensures that, as you sharpen your knife, you can put the sharpening steel on your countertop without it slipping.

## Grain size DMT Sharpening Steel Fine

The sharpening steel has a grain size of 25 micron. This corresponds with a Japanese sharpening stone of approx. J500 Japanese grit. This grain size provides you with quick results and a very sharp edge. These fast results also ensure you don't have to sharpen your knives on a daily basis. Once a week is enough. The sharpening steel is enhanced with a layer of monocrystalline, synthetic diamonds. Monocrystalline means that each diamond is comprised of one crystal. Unlike polycrystalline diamonds, monocrystalline diamond does not wear out as fast. As such it is great for a sharpening steel! 

## How to use the DMT Sharpening Steel

It's also good to know that a diamond-coated sharpening steel needs to be pre-sharpened. At first it might feel coarse, but this will become less after using the steel a couple times, after which it will have its desired effect. 

## Handle DMT Sharpening steel

The handle is made from a strong plastic and has a high protective edge. This does not only protect your hand as you sharpen your knife, it also ensures you have enough grip. The back of the sharpening steel is enhanced with a plastic ring you can use to hang the sharpening steel.

DMT Diamond Sharpening Steel Fine DS4F sharpening steel diamond 35 cm

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DMT Diamond Sharpening Steel Fine DS0F sharpening steel diamond 25 cm

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DMT Diamond Sharpening Steel Fine DS2F sharpening steel diamond 30 cm

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warranty

Almost all the products we sell come with a manufacturing warranty. Want to learn more about the warranty? Read our topic: [warranty explained](/en/ct/warranty-explained.htm)

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origin

The country of origin is the country the product is produced, as far as we know. This may differ from the country where the brand itself is located.

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Measured from the tip of the blade to the back of the handle

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We always weigh a product as bare as possible. Knives and axes always without their sheath, lights (if possible) without their battery. For knife sets we measure the entire weight. This may deviate from the manufacturer's specifications.

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Dimensions & weight

The material that gives the sharpening stone its abrasive effect. Diamond, ceramics (e.g. aluminium oxide or silicon carbide) or the materials in a natural stone. Read [more about the advantages and disadvantages of these materials](/en/ct/sharpening-stone-materials-which-are-the-best.htm).

Abrasive

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The agent that brings all the abrasive particles in a sharpening stone together. The cohesive agent usually consists of natural products, such as cellulose, wax, clay and even magnesium, or synthetic products such as: polyacrylates, polyvinyl alcohol or various synthetic resins. The cohesive agent itself usually has no abrasive effect.

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Material

The grain size a supplier gives to its sharpening stones. Please note: This can be either in FEPA-F (European), ANSI (American) or JIS (Japanese). Read [more about the different grain sizes here](/en/ct/expressing-grain-sizes-sharpening-stones.htm).

Grit according to supplier

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The grain size we give to a sharpening stone. We test all sharpening stones ourselves and add an appropriate grain size on the basis of this test. From extra coarse to ultra fine.

DMT Diamond Sharpening Steel Fine DS4F sharpening steel diamond 35 cm