: The absolute maximum thickness a machine can separate. This usually produces a rough, slow cut that requires heavy grinding later.
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: These require a clean, grounded surface and direct contact to start the cut. They are often cheaper but less versatile for salvage work. 3. Check Your Shop's "Power Diet" : The absolute maximum thickness a machine can separate
: These machines allow you to start the arc without touching the metal. This is essential for cutting rusted, painted, or dirty surfaces like scrap steel. or dirty surfaces like scrap steel.