Slotted tool box height adjustment with anti-collision protection device, will not damage the machine.
Slotting part is equipped with trimming tool holder, full computer control, the middle knife can be moved.
The upper and lower tool seat, preload wheel, and press wheel are connected with the new upgraded movable guide wheel, which effectively replaces the old vulnerable copper block to fix the dial, and keeps the accurate alignment of the upper and lower tool edges when moving, extending the tool life.