The chisel sharpener is made of durable cast aluminum. Fully coated with anti-rust paint, not easy to rust, durable and long lasting. _x000D_ By turning the screw cap to adjust the clamping width, the honing guide fits scissors from 3mm to 47mm in width and flat irons from 34mm to 79mm in width. _x000D_ Sharpening angles can be fine tuned using the sharpening jig by adjusting the projection of the tool. If chisel projection 30 mm for 30 and 40 mm for 25 angles, flat projection of 38 mm for 30 and 50 mm for angles_x000D_25. _x000D_ The design of replacing the ordinary steel wheel with a bearing wheel, using more smoothly. The honing guide can accurately sharpen the edge of your tools due to the careful processing of the working face. _x000D_ The sharpening guide can be used for wood chisel, planer, blade, chisel, carving knife, iron, flat chisel, edge sharpening. And use works easily on oil stones and stones_x000D_water. _x000D_ _x000D_ How to use _x000D_ 1. Twist the screw cap, clamp the chisel or other knife in place, and move the angle up and down. And also note the measurement. _x000D_ _x000D_ 2. Then tighten the screw cap, the edge of the blade is firmly attached to the whetstone or whetstones. Finally, slide the blade back and forth over the whetstone until the blade feels more precise and sharper. _x000D_ _x000D_ 1. Fine-tune the angle _x000D_ _x000D_ By adjusting the projection of the tool, sharpening angles can be fine-tuned using the sharpening device. If the chisel protrusion is 30 mm for 30 and 40 mm for 25 angles, then level the iron protrusion of 38 mm_x000D_for 30 and 50 mm for 25 angles. _x000D_ _x000D_ 2. Various uses _x000D_ _x000D_ The sharpening guide can be used for wood chisels, planes, blades, engravers, carving knives, flat irons, flat chisels and edge sharpening. And works easily on oil stones and water stones. _x000D_ _x000D_ 3. Sturdy and durable construction _x000D_ _x000D_ Angle sharpener is made of durable cast aluminum. Fully coated with anti-rust paint, not easy to rust, durable and long lasting.