KitchenAid Model KDTE104ESS1 Handle is loose and can not tighten it

I own matching dishwasher, oven, microwave and refrigerator all with handles that are red at the end. The handle on the dishwasher is loose and I can not find a tool to tighten it with. I bought the new iFixit Manta Driver Kit and none of the driver bits fit. I also tried Allen wrenches and none of them fit. So I have a wobbly dishwasher door handle. The loose “screws” are the ones under the handle not at the end. Any help would be appreciated.