1. Fixed Angle Honing: With our precision guide, you achieve precise angles that enhance the edge lifespan and sharpness. Eliminate the risk of edge thinning caused by inconsistent sharpening angles. Enable fixed angle sharpening to deliver a uniform and razor sharp edge. 2. Adjustable Distance – Achieve the edge on your knives and tools with the adjustable angle feature of our precision guide and ruler attachment. Simply set the distance and angle for clean and accurate results. 3. Wide Compatibility: This honing guide fits chisels and plane irons of various sizes and shapes, securing them with metal pins. It can secure most tools from 0 to 6.3 cm by adjusting the knob. 4. Easy to Use: Our precision guide features widened rollers at the bottom, allowing flexible sharpening with strict precision. Ensure smooth and efficient work by simply rolling your chisels from side to side. Experience enhanced accuracy with this innovative tool.