I did that twice....
I did that twice with a tungsten bar. Both were too big to massage, one had some cracking. Both times I drilled it to a 1/2" hole and made a four rivet well radiused and edged square patch over the hole, minding the edge distances, with 4 426-3's out of the same thickness as the parent. Once was fuse bottom, once similar to yours. Fifteen minute diversion, move on. Even I have to go looking for them now that it's painted. Aggravating when it happened....hardest part was dimpling the parent metal in place. Good luck, ymmv.