1、Aluminum Alloy Material: The honing guide is made of aluminum alloy material, which is not easy to rust and durable 2、Clamping Width: The maximum clamping width of flat iron is 10cm, the maximum clamping width of chisel is 5cm 3、Reliable and Practical: When sharpening the knife, the edge of the knife smoothly fits the whetstone, the angle is easy to grasp, and it is not easy to slide. During the use of the pulley, sliding back and forth is not restricted and keeps the same direction 4、Easy to Use: The edge of the blade is smoothly mounted on the whetstone, sliding the knife back and forth until your tool becomes sharper 5、Scope of Application: Used for edge sharpening of wood chisels, shavings, carving knives, planing knives, flat irons, and flat chisels