The drill head used to punch down to the fault line of the asteroid at 800ft. It’s a massive 3ft in diameter, made of fiberglass, and painted to look like industrial steel. It weighs a bit over 40 pounds and can be seen in a couple shots inside the shuttle as extra parts and briefly outside. https://youtu.be/KhlRTB7MwGg This link is a little youtube video of it automated and displayed>
