Hanger Steak With Chimol

Name: Hanger Steak With Chimol
Ingredients: Vegetable oil (for grill); Juice of 4 limes; ½ small red onion, thinly sliced; 2 serrano chiles, thinly sliced, seeds removed if desired; 1 garlic clove, finely grated; 8 oz. any kind of radishes, trimmed (peeled if using watermelon radishes), cut into bite-size pieces; 1 cup torn cilantro leaves with tender stems; Kosher salt, freshly ground pepper; ¼ cup plus 1 Tbsp. extra-virgin olive oil; 1 1¼-lb. hanger steak, cut crosswise into 2–3 pieces, center membrane removed; Worcestershire sauce and warmed tortillas (for serving)