Sturdy and durable construction The grinding aid is made of wear-resistant cast aluminum. Fully coated with anti-rust paint, not easy to rust, durable and long lasting. Excellent CompatibilityYou can adjust the range by twisting the screw cap. The honing guide fits scissors 5-50mm wide and flat irons 35-80mm wide. Includes flat jaws for clamping chisels and grooved jaws for clamping paring chisels and planer knives. Novel designThe design of replacing the plain steel wheel with a bearing wheel, which is used more easily. The chisel sharpening gauge can sharpen the edge of your tools precisely because the working surface has been carefully machined. Various ApplicationsThe grinding guide can be used for wood chisels, planes, blades, chisels, carving knives, irons, flat chisels, edge sharpening. And the application works well on oil stones and water stones. Precise Angle AdjustmentBy adjusting the projection of the tool, the sharpening angles can be fine-tuned to the using the sharpening device. If the chisel protrusion is 30 mm for 30 angles and 40 mm for 25 angles, the blade protrusion is 38 mm for 30 angles and 50 mm for 25 angles