(AH) Arrow Head – Starting Drill. (FAH) Flexible Arrow Head – For sharp turns in small lines. (1-1/4″ SCB) 1-1/4″ Side Cutter Blades – For cutting and scraping. (BG) Boring Gimlet – For removing loose objects. (DHBG) Down Head Boring Gimlet – Goes down waste, not up the stack.








