1. The head inserted in the middle of the gap between the knife head, the appropriate tighten the head nut.
2. You can use holding the same method with the pen, force to the appropriate force direction and the blade direction to keep in harmony, to avoid lateral challenge.
3. In order to protect the blade, to extend the use of blade time, carved paper pad should be under the pad or wax plate. Not recommended on the use of rubber glass marble board!
Its a great tool for crafters