From publisher blurb:
So, your explorer needs something special to investigate that dark cave, or to climb down that sheer cliff. Never fear, this supplement for Into The Chasm has what you need to create all sorts of gear your explorers can spend their hard earned cash on!
Or, you're an explorer, and you want to save some money and make your own gear. These guidelines will give you everything you need to make every kind of gear you could need whilst delving deep into the Great Chasm!