1.The current blade can be used on all sides;
2.When the blade is found to be seriously worn, it needs to be adjusted or replaced;
3.Rewind the cutter to the highest point and stop;
4.Pull off the front cover and loosen the hex socket bolt on the clamp plate, you can adjust or replace the blade;

5. The blade should lean to the left, re-tighten the hexagon socket bolts on the clamp plate, and push into the cover.