Auto-cleaning with Hilti hollow drill bits Dry or Wet Base Material Condition 330 ml Cleaning procedures: Auto-cleaning with Hilti hollow drill bits, Compressed-air cleaning, Manual cleaning, No cleaning required with Hilti HIT-Z rod Anchoring elements: HIS-N internally-threaded inserts, HIT-V threaded rods, HIT-Z torque-controlled bonded anchors, Rebar Environmental conditions:: Highly corrosive special applications, Indoor, damp conditions, Indoor, dry conditions, Indoor, ventilated facades, Outdoor