🔥This genius mechanic trick uses a simple copper wire coil to save a ruined engine block when a recessed bolt is stripped. By winding a piece of copper wire around the stuck fastener, you create a protective bushing that centers your drill bit and prevents it from damaging the soft casing walls. This allows you to drill out the bolt's core perfectly straight, relieving the structural tension so the remaining metal threads can be peeled out effortlessly with pliers. Save this precision extractio

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