Spyderco 400F1R ceramic sharpening steel round

With the Spyderco 400F1R ceramic sharpening steel round the serrations of blunt knives are no longer safe. Because of the round shape bread knives, steak knives, tomato knives or other serrated knives are easy to sharpen.

Learn more about the right technique to sharpen a serrated knife.

The sharpening steel is made from aluminium oxide with a fine grain. The hardness is 9.2 on the scale of Mohs. That is almost as hard as diamond to make sure that sharpening rock-solid types of metal and even most carbides is very easy.

The Spyderco 400F1R is dishwasher proof and can handle sterilisation in an autoclave. It is therefore also perfect to sharpen, for instance, dental tools or other medical equipment.

The sharpening steel is meant for fine sharpening work. We recommend using a stone with a coarser grain to sharpen blunt knives.

The sharpening steels are also available as a set.

Maintenance:

If the ceramic sharpening stone is clearly affected by metal deposits you can clean it with water, an abrasive sponge and a little detergent to make sure the stone will be like new again.