Wright Tool 958 18 Pc With Tool Roll. Patented WrightGrip® technology provides unparalleled tool-to-fastener contact resulting in a superior anti-slip combination wrench. Forged and Machined for Best Fit and Unyielding Strength. Precision Heat-Treated and tempered for optimal hardness, ductility and durability. Easy to read stamp pattern in order to quickly determine opening size. Designed, engineered and manufactured in Barberton, OH USA. Meets and exceeds ASME B107 hand tool standards. 18 Pieces-Full Polish Combination. Metric Full Polish Combination Wrenches. WrightGrip 2.0: Advanced opening profile places more metal in high-stress areas to stiffen the jaws, increase tool strength and reduce permanent jaw spread.