The Planted Tank Forum - View Single Post - How to drill steel plate, need suggestions
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Old 06-27-2013, 02:48 AM   #10
Rodneywt1180b
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Mark your location with a center punch first. Drill a pilot hole with a sharp smaller bit. Drill again with a size about 1/2 way between your first bit and your final size. Finally drill with the size you want. Any regular old oil will work. I've even used cooking oil to drill steel before.
Rodney
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