I used this item for about 3 days and I was flying the chips of the lumber of the floor with air, just the tip of the nozzle gently hit the base of the machine, the 皹 came into the base of the long nozzle, the part of the screw I left it at the tip of the air gun and it broke. I am sorry that I realized that it was made of very weak material at that time. I would like to search for materials with more strength in stainless steel.