The innovative and versatile 3-Pc. Specialty Blow-Gun Assortment includes: a BlowBack™ model, Air Bender™ model, and an Air Scraper model. They are ideal for engine repair, machine shop, ag/construction and general industrial applications and much more.; #8056 – Air Bender Blow-Gun reaches hard-to-access areas with focused, high-pressure, 90° angle output; For blowing out channels, ports, or reaching around obstructions; #8057 – Air-Scraper Blow-Gun features a stainless steel shaft and scraper tip that combines air pressure and scouring action to remove and blow away stuck-on debris for faster cleaning than other methods; For cleaning gasket surfaces, removing grease, rust and more; #8058 – BlowBack™ Gun dislodges and evacuates debris from the bottom of a bolt hole and out of all the threads; For cleaning head-bolt holes, manifolds and more