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2" ROUND SWITCH INSERT 38x21mm
by John8
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This is a 2" round hole 38x21mm rectangular switch insert with #4 FH, beveled screw holes top and bottom for mounting. Because square and rectangular holes are hard to drill I made a nice simple holder to fit a 2" round hole. 2" hole saws are easy to find and come with most doorknob mounting kits. The 38x21mm hole can be changed to suit your application. This Insert can be used with Speakers, Automotive, 12v Campers, and RV Lighting.
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