Final answer:
The question lacks context to determine the exact subject or grade, making it difficult to provide a detailed answer. Please provide more information about what the terms 'under cut' and 'back cut' refer to.
Step-by-step explanation:
It seems like the question is referring to a process involving a sequence of steps, where "under cut" and "back cut" are specific stages. However, without context, it is not possible to accurately determine the subject area or grade level. These terms could potentially relate to various disciplines, such as carpentry, tree felling in arboriculture, or even cooking.
Without additional information, providing a detailed answer is not feasible. If you can provide more context or details about what "under cut" and "back cut" refer to in your question, I would be happy to assist you with a step-by-step explanation of the process that should be followed in between these two stages.