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