Fixed Angle Manual Knife Grinder Shelf $ 6.64 Product information: Material: metal Style: modern and simple Explain: Turn the Screw-cap, clamp your chisel or other knife tools, move up and down to adjust the angle. And also notice the measurement. Then tighten the screw-cap, the blade edge is smoothly fitted to the whetstone or sharpening stones, slide the knife back and forth to bring your tools back to razor sharping. Packing list Knife sharpener X1PCS