Prolong the life of the knife: After a long time of use, is your planer or engraving knife no longer sharp? Our sharpening tool can quickly and easily make the blade as sharper than before and prolong tool life. It is an indispensable tool for any carpenter. High quality material: The scissor sharpener is made of high quality carbon steel, which is not easy to rust and is durable. Can be widely used in chisel, flat shovel, planing iron, gravel, etc. Intimate Design: Our knife sharpener adopts rotating nut design, which can adjust the angle of the blade. Sharpen the blade as needed and finally slide the blade back and forth over the sharpening stone to make the blade more precise. Adjustable width: inner clamping range of our knife sharpening guide size: 0-50mm, outer clamping range: 36-86mm. Applicable to blades of different widths. Wide Application: The wood chisel guide is suitable for grinding the cutting edges of wood chisels, planers, blades, engraving machines, engraving knives, flat irons and flat chisels. and helps extend the life of many scissors and woodworking irons.