Model Number: TC-A506 Brand Name: BLUAIR Key Specifications/Special Features: 3/8" Dr. air impact ratchet wrench with 1-step powerMax torque: 100 N-mMechanism: 2pcs gearsGood performance in narrow spacesEasy maintenanceErgonomic composite body/injection gripApplication: 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 PCS TC-A506 3/8"" ( 74 / 100 ) 1.3 277 1/4" 3/8" 7.1 160 2 PCS TC-A509 1/2" ( 74 / 100 ) 1.3 277 1/4" 3/8" 7.1 160 3 PCS TC-A510 3/8"" ( 74 / 100 ) 1.3 277 1/4" 3/8" 7.1 160 3 PCS Exhaust Rear Air Pressure : 90 PSI 6.3 kg/cm2