What Size Hole Will the Optronics Light part # BUL52CB Install Into

Question:

What size hole has to be cut for flush mounting the BUL52CB with the rubber grommet? Thanks.

asked by: Ken

Expert Reply:

The easiest way to cut the oval hole for the Rubber Grommet, # a70gb, that would be used with the Optronics Light part # BUL52CB 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.

expert reply by: Jameson C