Model Number: TC-A505 Brand Name: BLUAIR Key Specifications/Special Features: 1/2"Dr air impact ratchet wrench with 1 step powerMax torque: 100 N-mMechanism: 2 pieces gearsGood performance in narrow spacesEasy maintenanceErgonomic composite body/injection gripApplications: automotive/motorcycle/agricultureOEM/ODM services are accepted Model Square drive Max Torque Net weight Overall length Air inlet Hose size Air cons. Free speed Mechanism (inch) (ft.lb/Nm) (kg) (mm) (inch) (inch) (CFM) (RPM) (Gear) TC-A505 1/2" 74 / 100 1.3 277 1/4" 3/8" 7.1 160 2 pieces TC-A506 3/8"" 74 / 100 1.3 277 1/4" 3/8" 7.1 160 2 pieces TC-A509 1/2" 74 / 100 1.3 277 1/4" 3/8" 7.1 160 3 pieces TC-A510 3/8"" 74 / 100 1.3 277 1/4" 3/8" 7.1 160 3 pieces Exhaust rear Air pressure: 90 PSI 6.3 kg/cm2