Nice weather today.... 73F and raining hard. Have severe thunderstorm warnings, flash flood warnings and a tornado watch. Driveway and entrance to my back yard and shop gate are a little flooded.
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Worked on the rear bumpers cutting holes for the oval grommet style tail lights and back up lights. 4 lights in each bumper. 3 stop /turn / tail light and 2 reverse lamps, well beyond the minimum FMSCA requirements. Using this style light because they are well protected from damage playing with ramps or loading something or doing something stupid like backing into something.
Good measurements and layout is crucial for this type of lamp. Make the hole too big and they like to fall out. You want them tight but still easy to install and remove.
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A milling machine would sure be nice but I don't have one and am too cheap to hire it out. Drilled 3 7/8" holes at the end of each cutout with a step drill. I like step drills but they really ain't supposed to be used on 1/4" steel.
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Step drills sure make a nice clean hole and cut through steel fast. They are pricy but worth every penny.
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Cut out holes with a cross cut carbide burr on a die grinder and my 4-1/2" electric grinder
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Nice clean finished hole
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Perfect fit
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