Engineered for demanding workshop environments, this professional chain wrench set delivers unmatched gripping power on cylindrical surfaces. The heat-treated high-carbon steel construction withstands 200+ ft/lbs of torque while the chromium-plated chain links prevent slippage on oily/wet filters. The reversible jaw mechanism allows both clockwise and counterclockwise operation without tool repositioning. Wide 17" chain capacity handles large-diameter industrial pipes (schedule 40/80), agricultural equipment maintenance, and heavy-duty truck oil changes.