Place the chipotle peppers, garlic, cayenne pepper, paprika, black pepper, cumin, lime juice, Worcestershire sauce, honey, vinegar, and olive oil into a blender. Puree until no pieces of garlic remain. Pour 1/4 of the marinade into a small dish and set aside. Rub a pinch of kosher salt into each chicken drumstick and place into a resealable plastic bag. Pour in the marinade, shake, and seal. Marinade at least 2 hours in the refrigerator.
Preheat an outdoor grill for medium-high heat and lightly oil the grate. Remove the chicken from the marinade and shake off excess. Discard the remaining marinade.
Cook the chicken legs on the preheated grill until no longer pink at the bone and the juices run clear, about 8 minutes per side. An instant-read thermometer inserted near the bone should read at least 165 degrees F (74 degrees C). Once the legs are completely cooked, baste well with the remaining marinade, cover the grill, and cook and additional 2 minutes per side to glaze.