Lift the knife board to be flexible, or planer back with the processing surface scratching, easy to lead to blade damage; also should not be too large, the gap is too large, planer will swing around, the return process will scratch with the processing surface, damage the blade.
Under normal circumstances should not use YT-type carbide, optional YG-like materials or high-speed steel cutting tools
Lift the knife board to be flexible, or planer back with the processing surface scratching, easy to lead to blade damage; also should not be too large, the gap is too large, planer will swing around, the return process will scratch with the processing surface, damage the blade.
Check whether the return stroke mechanism is flexible and reliable.
