I needed a cutter to cut aluminum plate (up to 1/4 inch) and tried a dozen versatile cutters and they all almost clogged with aluminum.right away. I tried this one Amana single edge drill bit and loved it - it just works. NEVER clogs. 25" aluminum panels (with guides) and never had a problem - hundreds of cuts with a drill without blunting. It's expensive but worth it.
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