Don't Strip It. Grip It! Rounding Prevention Technology or RPT, is the patented technology behind GripEdge's industry-changing line of tools. For nearly a decade, Grip Tooling Technologies has been producing innovative tools for major industry players. The GripEdge line of tools boasts unparalleled gripping strength, enabling users to surpass the torque limitations of other tools while simultaneously safeguarding fasteners from stripping or damage.