Features RPM and Pressure: The air impact screwdriver has a no load speed of 9000RPM, air pressure of 90Psi, torsion of 100‑120N/M, and an air inlet connection of 1/4in. Silencer: Pneumatic gun screwdriver is with silencer exhaust treatment reduces the noise levels and prevents air from blowing into the user's work area. Ergonomics: Pneumatic gun screwdriver is comfortable to use, light weight and ergonomically designed for grip. More comfortable and less vibration. Made of Alloy Steel Material: Pneumatic screwdriver has a longer service life, made of alloy steel material with special heat treatment, strong and durable. Multi Purpose: Pneumatic gun type screwdriver is used for tightening and loosening screws and nuts etc. It is suitable for furniture assembly, furniture decoration, electromechanical assembly, door and window production etc. Specification: Item Type: Pneumatic Gun Screwdriver Material: Alloy Steel Chuck: Approx. 6-8mm/0.24-0.31in No Load Speed: 9000RPM Air Pressure: 90Psi Torsion: 100-120N/M Air Inlet Connection: 1/4in Package List: 1 x Pneumatic Gun Screwdriver 1 x Connector 1 x Pin 1 x Air Inlet Port 1 x Screwdriver 1 x Hanging Ring Package List 1 x Pneumatic Gun Screwdriver 1 x Connector 1 x Pin 1 x Air Inlet Port 1 x Screwdriver 1 x Hanging Ring