Hello.Sometimes there is a need for large holes in the sheet metal. I used to drill in a circle and beat with a hammer, then a long and tedious work
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Fly cutter, drill for cutting large holes in sheet metal
Homemade DIY Fly Cutter, Double Edged, for Milling Machine. : 6
This wheel and hole attachment cuts the odd-size holes that drills and saws can never match. High-speed bit is reversible to cut either an inside or outside hole or wheel. Makes beautiful toy wheels and round covers! Cutter is adjustable anywhere from 1 to 6. High speed bit is re-sharpenable. Imported.
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