What are corner guards? We cannot speak for other companies but Motobilt corner guards are laser cut and formed on CNC press brakes in house using custom made tooling to ensure a perfect fit. Currently we manufacture all of our corners from high strength 3/16" steel plate. We offer corner guards in a few different formats covering comp cut or competition cut, factory wheel opening and stretched versions. Corner guards help prevent damage to the rear body panels of your Jeep.