If you use debt funds to finance a project, is the after-tax cost of debt the required

Question:

If you use debt funds to finance a project, is the after-tax the required return for the project? As long as the project earns more than enough to pay interest and service the principal, does it not benefit the firm?
Cost Of Debt
The cost of debt is the effective interest rate a company pays on its debts. It’s the cost of debt, such as bonds and loans, among others. The cost of debt often refers to before-tax cost of debt, which is the company's cost of debt before taking...