Leikkuukivien

Leikkuukivien is a Finnish term that translates to "cutting stones" or "sharpening stones" in English. It refers to a type of abrasive material used for sharpening tools, particularly knives, axes, and other cutting implements. These stones are typically made from natural minerals or synthetic materials that are harder than the metal being sharpened.

The effectiveness of a leikkuukivi depends on its grit, which describes the size of the abrasive particles. Finer grits produce a sharper edge, while coarser grits are used for repairing chips or reshaping the blade. Leikkuukivien can be used dry or with water or oil as a lubricant. Water is commonly used for natural stones, while oil is often preferred for synthetic ones. The lubrication helps to wash away metal particles and prevent the stone from clogging.

Sharpening with a leikkuukivi involves moving the blade across the stone at a consistent angle. This process gradually grinds away small amounts of metal, reforming the cutting edge. Different types of leikkuukivien exist, including oil stones, water stones, diamond stones, and ceramic stones, each with its own characteristics and applications. The choice of stone depends on the type of tool being sharpened, the desired level of sharpness, and personal preference. Proper maintenance of leikkuukivien, such as flattening them when they become worn, is essential for maintaining their effectiveness.