They have very thick (about 1/4 inches), rubbery skin, which is so tough that it’s been shown to be nearly impervious to traditionally made arrows and spears. Further, their skin can take a full blow from a sharp machete without necessarily cutting the skin all the way through. More practically, this skin helps the Honey Badger from the teeth of predators.
Along with sharp teeth, Honey Badgers also have incredibly powerful jaws. This is helpful due to the fact that the Honey Badger will eat every part of its prey, including the bones. The jaws are even powerful enough to eat a turtle, including the shell, without difficulty.
Not only this, but they are naturally not very affected by many types of stings and venom. They can even get bitten by King Cobras and Puff Adders multiple times with little effect, though a strike from something like a Puff Adder that manages to actually penetrate their skin will eventually knock the Honey Badger out for a couple hours.