Smith’s 2-Stage Pull-Thru Knife and Scissor Sharpener features coarse and fine sharpening slots. The coarse slot includes preset carbide blades set at 35 degrees to quickly sharpen European / American style straight edge knives. The fine slots feature triangular-shaped ceramic stones set at 37 degrees and are perfect for finishing the edge of the knife and for everyday honing. The ceramic stones also sharpen serrated knives. This versatile sharpener’s patented scissor sharpener works on both right- and left-handed scissors featuring floating ceramic rods.