How to Cut a Grommet Hole for Installation of the Oval Trailer Tail Lights # STL22RB
Updated 02/20/2012 | Published 02/14/2012 >
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Question:
what is the best and cleanest way to cut the oval holes for trailer lights in metal?I dont have access to a gas cutter.
asked by: Randy M
Expert Reply:
The easiest way to cut the oval hole for the Rubber Grommet, # a70gb, in my opinion, would be to use a Light Mounting Bracket for 6-1/2 inch Oval Trailer Lights, BK70BB, as a template and then use a hole saw the correct size to cut a hole on each end of the mounting location. Then, use a angle grinder with cut off wheel or a reciprocating saw with metal cutting blade to cut the straight top and bottom sides of the hole.
The correct width for the grommet is 2-5/8 inches, but I have found that a 2-1/2 inch hole saw usually works well and you could enlarge the hole slightly with a file or small rotary tool with grinding stone. When drilling the holes make sure that the outside edge of each hole is 6-3/4 inches apart.
I produced a short video, see link showing a 2-1/2 inch hole saw and the mounting bracket I mentioned.

Product Page this Question was Asked From
PVC Grommet for 6-1/2" Oval Trailer Tail Lights
- Accessories and Parts
- Trailer Lights
- Mounting Hardware
- Grommet
- 6-1/2 Inch Long
- Oval
- Optronics
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