Suggested Tool: The Fiskars Pro Utility Knife with Retractable Blade Guard. An old school solution.

The Fiskars Pro Utility Knife with Retractable Blade Guard uses a swinging blade cover rather than a swinging blade. It is an old school solution found on some old knives and hatchets. By making a movable blade cover, it prevents the weakness of a mechanism at the point where the blade and handle meet. However, if you are applying so much force to a utility knife that a hinge point is a concern, perhaps you are using the wrong tool. Either way, I appreciate the engineering that went into it. Fiskars 770010-1001 Pro Utility Knife on Amazon https://amzn.to/3ILB5uS