The Innovative Products of America 3-pc Specialty Blow Gun Assortment, No. 8055, includes a blow-back model, air-bender model, and an air-scraper model. The BlowBack Gun dislodges and evacuates debris from the bottom of a bolt hole and out of all the threads. The Air Bender Blow Gun reaches hard-to-access areas with a focused, high-pressure, 90-degree angle output. The Air Scraper Blow Gun is used to remove gasket materials hardened to a surface. The stainless-steel shaft and hardened scraper tip combine air pressure and scouring action to remove and blow away stuck-on debris quickly. The blow gun tubes are 3/8" in diameter, 7″ in length, and made from anodized aluminum and stainless steel.