No longer have to worry about the bluntcutter in the kitchen, this set of sharpener tool installs quickly, sharpener is convenient and safe, will be a perfect helper in the kitchen. Features: Quick-clamp design makes sharpening the cutter easier and more efficient, you don't need any wrenches and screws to help you fixed the cutter. The sharpening stone can be rotated about 180 degrees, and there is no need to remove the sharpening rod when changing sides. Silicone gaskets on the clamping position and mianbody to protect your cutter and desktop from scratches. Automatically rising the clamping plate, no need to pull up the splint by hand. Can quickly locate the sharpening angle of 15 degrees. Made of 6061 aluminum alloy and 304 stainless steels, wear resistant for long service time. Two whetstone can be installed at the same time for more convenient operation. Specifications: Type: set A, set B, set C (optional) Material: stainless steel+aluminum alloy Table clamp range: 0-55mm / 0-2.2in Sharpening angle: 15-40 Whetstone size: 160 * 22 * 8mm / 6.3 * 0.7 * 0.3in Package size: 310 * 140 * 60mm / 12.2 * 5.5 * 2.4in Package weight: Set A: 940g / 2.1lb Set B: 1100g / 2.4lb Set C: 1220g / 2.7lb Packing List: Set A: 1 * Grind Tool Machine 4 * Whestone (120#, 400#, 800#, 1500#) 1 * User Manual Set B: 1 * Grind Tool Machine 6 * Whestone (120#, 320#, 600#, 800#, 1500#, 3000#) 1 * User Manual Set C: 1 * Grind Tool Machine 8 * Whestone (80#, 240#, 320#, 600#, 800#, 1000#, 2000#, 3000#) 1 * User Manual