Power
Drive power installed in an electric grinding machine. The indicator is expressed in watts. The larger and harder the tool being processed, the more powerful the electric sharpener is needed. However, for sharpening knives at home, a power level of up to about 450 W, or even less, is quite sufficient.
Sharpening / grinding levels
Number of levels of sharpening and/or grinding of knives. In basic models there are often few of them - rough sharpening, grinding and polishing, nothing more. Sharpeners with a large number of levels are less common and often cover the advanced or professional segment.
Serrated sharpening
Possibility of using a sharpener for
sharpening serrated blades.
Such blades have a serrated cutting edge, for which the classical method of sharpening, on a flat surface, is unsuitable: such a procedure will simply erase the teeth and, at best, turn the serrated blade into a classic smooth one. Therefore, for sharpening in this case, special devices are used: thin rods made of abrasive material, somewhat tapering towards the end. With such a rod, each individual tooth is sharpened separately; this work can be quite laborious, but it allows you to restore the full performance of the serrated blade. At the same time, note that for blades with fine teeth, even such a specialized sharpener may be too large.
Sharpening scissors
Possibility of using a sharpener for
sharpening scissors.
Technically, you can sharpen scissors on almost any sharpener — the design of their blades is not very different from knife ones. However, individual sharpeners may provide various design solutions that make it easier to work with scissors — for example, the ability to set the optimal sharpening angle or special mounts for such a tool. Therefore, for maximum convenience when working with scissors, you should still choose models where this function is directly stated.
