, How:1. Made of high-quality stainless steel, the nut is rust-proof and very durable.2. Stainless steel and brass design, providing more choices, unlimited back and forth movement during the sharpening process, stable and safe.3. Keep one-way, stable center of gravity, non-slip, stable and safe.4. You can adjust the clamping width by turning the nut, the clamping width range is 5-82mm.5. The maximum clamping width of the planer is 82mm and the maximum clamping width of the chisel handle is 55mm.6. Suitable for sharpening wood chisels, iron, blades, engraving machines, engraving knives, iron and flat chisels. Specification: Name: brass angle sharpenerMaterial: stainless steel + brassPacking List: 1*fixed angle sharpenerRemarks: If you have any questions, please contact me in time and I will be happy to answer you.