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One end of a traditional open-end wrench merely applys to the nuts of one specific size
For handing complextasks, a full set of open-end wrenches are necessary but heavy to take along. To overcome this inconvenience,we creatively designed three teeth on one side of the jaw to fit 3 different types of nuts With double-ended design, the function of a single open-end wrench has been madmized that i becomes applicable to 6 types of nuts! This innovation has been proved to effectively ease workers' burden and improve their work efficiency.