BambooMN Bonsai Concave Cutter and Knob Cutter

The concave cutter is designed to remove branches flush with the trunk, leaving a hollowed-out depression that heals over smoothly. The knob cutter features a rounded head specifically for removing stubborn knobs, burls, or branch stubs, allowing you to cut slightly below the surface of the bark for a clean, recessed finish.

Yes, the ergonomic design and 8-inch length make them manageable for beginners while still offering the precision required by advanced practitioners. They are a great foundational set for anyone learning the basics of structural pruning.

Carbon steel is durable and holds a sharp edge well, but it is susceptible to rust if left wet. To keep them in top condition, wipe the blades clean with a soft cloth after each use and lightly oil them before storing in a dry place.

These 8-inch tools are best suited for small to medium-sized bonsai branches. While they are sturdy, you should avoid forcing them on branches that exceed the jaw capacity, as this can damage the pivot or dull the blades.

Yes, both tools are engineered to create a concave wound. When a tree heals, the bark grows inward to cover the cut; a concave shape encourages the callus tissue to grow flush with the surrounding bark rather than creating an unsightly bump.