taidea knife grinder angle double side professional knife sharpener sharpening grinding stone whetstone

product description:.1.high-grade whetstone ensure effective sharpening results..2.double-sided sharpening design..3.equipped with silica gel non-slip base guarantee the safety sharpening..using introduction:.1. soak the stone in the water for 5 minutes, and then put it on a steady platform. sharpening the knives with one or two steps is decided by the degree of blunt tool..step 1: coarse grinding, used to repair the seriously dam aged edge, suitable for blunt knives. hold the knife at an angle