Adjustable sharpening angle The planer blade can be set by changing the distance between the top surface of the chisel and the honing guide rail to achieve a standard sharpening angle. Versatile sharpening guide for stone grinding This sharpening guide is ideal for woodworkers who want to keep their tools sharp and precise when grinding on stones. Durable all-metal construction with extended roller design Durable all-metal materials and an extended roller design make it easy to sharpen chisels, with long-lasting performance and rust resistance over time. Aluminum holder for woodworking machines This holder is suitable for woodworking machines such as planers and is constructed from aluminum. applications - Routine maintenance of planer blades in a workshop, setting a standard bevel before honing. - Sharpening chisels on a stone with a consistent bevel for improved edge accuracy. - Use with woodworking machines like planers to maintain blade sharpness without removal.