1. **Selected Materials**: The outer layer of this woodworking chamfer planer is crafted from aluminum alloy and ABS plastic. It has strength, pressure resistance, corrosion resistance, and other properties, while also providing a comfortable grip for easy operation. 2. **Interchangeable 7 Types of Bits**: This chamfer planer comes with seven different heads for versatile use: sharp rounded, two rounded, two sharp, 1/8' rounded, 3/16' rounded, 1/4' rounded, and a 45° flat cutter. The wide selection enables you to plane various shapes, meeting all your daily woodworking needs. 3. **Adjustable Screw**: Equipped with an adjustable knob, this woodworking chamfer planer allows you to extend or retract the knife head by turning it, changing the blade projection depth. This feature ensures precise adjustments to meet your requirements for different cutting depths. 4. **Fixing Screw**: The planer has an upgraded fixing screw for enhanced blade security. It prevents the head from loosening or shifting during work, ensuring consistent planing results and helping you complete wood crafts more easily.