1.Made from 3Cr13 stainless steel with a hardness of up to HRC46-50, wrenches are heat-treated and sandblasted, corrosion-resistant and rust-proof finish for long-lasting use; and the surface can be adsorbed by magnets.2. The wrench can grip tightly onto fasteners for easy turning and come open ends to narrow spaces.3. Combination wrench is widely for DIY hand-making, household maintenance, and most general repairs. They make excellent hand tools for mechanics or truck drivers.4. The size is clearly printed on it so you can quickly identify and get the correct size.5. When choosing, choose the appropriate wrench according to the size of the connector you need to tighten or loosen.
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