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Induction hardened crowbars

The term "induction hardened" describes the specific heat treatment of the steel from which the crowbar is made. During this process, only selected parts of the tool are heated by electromagnetic induction, which is essentially the creation of a strong magnetic field. These are typically the working ends of the crowbar, such as the splitting point or the nail extractor. A rapid high temperature is followed by a rapid cooling. As a result, these working parts gain significantly higher hardness and resistance to wear and deformation. The rest of the crowbar body, i.e. the main shank, retains its original toughness. This combination is key, as the hard ends will not blunt or bend when prying, while the tougher centre section better resists stress and reduces the risk of the tool breaking under heavy loads. Induction hardening thus makes it possible to produce a crowbar that is optimised for heavy-duty work, where its stressed ends stay sharp and functional for longer without compromising the overall strength of the tool.

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