These ratcheting box-end wrench sets come with 12 points and have an additional groove on the box end. This makes it easier to connect with the head of the fastener and access it from different angles as compared to a 6-point wrench. The double-end wrenches have a different metric size on each end, which allows them to work on two different-sized fasteners. The ratcheting box ends have a gear mechanism that lets the wrench rotate freely in one direction without removing the head from the fastener, thus saving time and effort.
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