High-quality material: not easy to rust, durable and long-lasting. Angle adjustable: You can adjust its clamping width by rotating the screw cap. Adjustable clamping width: Planer clamping width: 36 - 86 mm; Chisel clamping width: 0 - 55 MM. Multifunctional: Suitable for wood chisels, planers, blades, gravers, engraving knives, planing irons and flattening chisel edges. Easy to use: Turn the screw cap counterclockwise, clamp the chisel or other tools, move up and down to adjust the angle. Then tighten the screw cap clockwise and the blade edge fits snugly against the grinding wheel or grindstone, sliding the tool forward and backward until the tool becomes sharper. Size: 9 * 4 * 3.5cm Note: The data are all measured manually, please allow 1-3cm error due to differences in light and display, there may be some color differences, please refer to the actual item received.