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Open-end wrenches of this type are perfect for both professional workshops and garages. Open-end ring wrenches are mainly used for brake lines, as the bolts used there are made of soft materials. A regular flat wrench can easily damage them by slipping. HANS double open-end ring wrenches are made from the highest quality tool-grade chrome-vanadium alloy steel. The ergonomic handle and perfectly calibrated head allow for loosening bolts and nuts with very high torque, minimizing our effort, making it much easier to loosen seized connections. HANS wrenches allow for the transfer of large forces and are highly resistant to deformation, even with frequent work under heavy loads. The rounded shapes of the transition between the head and the handle of the wrench contribute to an even distribution of stress, giving the wrenches a very long lifespan.