The port adopts a pointing process, the air outlet is more concentrated and powerful, with a large flow rate and high efficiency. The pipe caliber is 6mm/0.24in, and is made of chromium-containing stainless steel, which is not easy to break and rust, and the steel pipe will not loosen. The joints are specially designed to ensure that the key parts are durable and not easy to leak. The plastic adopts first-class engineering plastics, has the characteristics of oil resistance, wear resistance and aging resistance, and self-lubricating. Ideal for dust cleaning in the factory, school, home or anywhere else with dust. Specification: Item Type: Air Blow Gun Material: High Pressure Resistant Plastic Steel + Steel stainless steel Purpose: High pressure dust removal Air inlet size: approx. 1/4in / 0.64cm Pipe caliber: approx. 6mm / 0.24in Color: blue Working pressure: 75-120PSI Maximum pressure resistance: 160PSI Note: The data are all measured manually, please allow 1-3cm error due to differences in light and display, there may be some color differences, please refer to the actual item received.