🔥This heat cycle technique unlocks seized hardware that an impact wrench cannot budge. By applying penetrating oil and heating the bolt threads with a direct flame, the mechanic uses thermal expansion to crack the rust bond. The heat draws the lubricant deeper into the threads, allowing the fastener to spin free smoothly without shearing off the head. Save this video to remove stuck bolts on your next repair. #mechanic #restoration #automotive #toolhack #rustremoval #engineering #diy #lifehacks