Introduction: The Tian bonsai knob cutter, available in 180mm, 205mm, and 290mm sizes, requires proper handling, size selection, and maintenance to ensure precise cuts and tool longevity. In the rhythm of daily bonsai https://www.tianbonsai.com/products/professional-grade-180-mm-knob-cutter-concave-edge-cutter-4cr13mov-alloy-steel-bonsai-tools-made-by-tianbonsai-172