The Smart Auto-Retracting Metal QBAR is the most convenient and easiest-to-use, heavy duty, fully auto-retractable safety cutter available. To protect users from injury, the pressure sensitive blade instantly retracts into the cutter once the blade loses contact with the cutting surface. In addition, the QBAR features a metal bladeless tape splitter, which allows users to open boxes without even utilizing a blade, extending the blade life and increasing safety. The unique integrated hinge design and easy-open dial make for a super convenient, tool-free blade change. The unique 3-button design makes cutting the top or the side of boxes ergonomically efficient and comfortable, for both right- and left-handed users. This rugged universal cutting tool reduces costly razor blade injuries and makes cutting safe, easy and comfortable.