{"product_id":"proto-j138wa-air-impact-wrench-3-8-in-drive-170-ft-lb","title":"Proto J138WA Air Impact Wrench 3\/8 in Drive 170 Ft\/lb","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe PROTO J138WA is a 3\/8 inch drive inline air impact wrench built for trade professionals who need reliable fastener removal and installation in tight service environments. It delivers 170 ft\/lb of torque at a free speed of 7,200 RPM, with 1,600 impacts per minute for rapid, consistent power output. Air supply requirements are straightforward: 90 psi operating pressure and 5 CFM air consumption through a 1\/4 inch NPT inlet. The bottom exhaust design directs air away from the work area, keeping debris and exhaust out of the technician's face during use. At 4 pounds, it is light enough for extended overhead or confined-space work.\u003c\/p\u003e\u003cp\u003eThe J138WA is suited for automotive, HVAC, plumbing, and general mechanical service applications where a compact, mid-torque impact wrench is needed. The inline handle configuration makes it a natural fit for wheel service, equipment assembly, and underhood fastener work. A minimum 3\/8 inch hose is required to maintain adequate airflow. This tool is intended for use by licensed mechanics, HVAC technicians, plumbers, and experienced tradespeople operating shop air systems.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e170 ft\/lb torque output for mid-range fastener work\u003c\/li\u003e\n\u003cli\u003e7,200 RPM free speed with 1,600 impacts per minute\u003c\/li\u003e\n\u003cli\u003eInline handle design for access in confined spaces\u003c\/li\u003e\n\u003cli\u003eBottom exhaust keeps airflow directed away from the operator\u003c\/li\u003e\n\u003cli\u003e1\/4 inch NPT inlet compatible with standard shop air fittings\u003c\/li\u003e\n\u003cli\u003eLightweight at 4 pounds for reduced operator fatigue\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with standard 3\/8 inch drive sockets and accessories. Requires a shop air supply capable of delivering 90 psi and 5 CFM through a minimum 3\/8 inch air hose.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eEnsure the air supply is depressurized and the compressor is shut off before connecting or disconnecting the tool from the air line. Use a properly rated 3\/8 inch or larger air hose and confirm all fittings are rated for the operating pressure. Apply a few drops of pneumatic tool oil to the inlet before first use and periodically during service to maintain internal components. This tool should be operated and serviced by qualified tradespeople familiar with pneumatic tool safety practices.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrive Size\u003c\/strong\u003e: 3\/8 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHandle Type\u003c\/strong\u003e: Inline\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTorque\u003c\/strong\u003e: 170 ft\/lb\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFree Speed\u003c\/strong\u003e: 7,200 RPM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImpacts Per Minute\u003c\/strong\u003e: 1,600\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAir Consumption\u003c\/strong\u003e: 5 CFM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Pressure\u003c\/strong\u003e: 90 psi\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAir Pressure\u003c\/strong\u003e: 6.20 bar\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInlet Size\u003c\/strong\u003e: 1\/4 inch NPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Hose Size\u003c\/strong\u003e: 3\/8 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust Location\u003c\/strong\u003e: Bottom\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDecibel Rating\u003c\/strong\u003e: 96.0 dB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 4 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 27112700\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: PROTO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: J138WA\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PROTO","offers":[{"title":"Default Title","offer_id":51540251345202,"sku":"J138WA","price":361.35,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/204321caa383b9cb2e20d06c10387c51.jpg?v=1785850278","url":"https:\/\/voomisupply.com\/products\/proto-j138wa-air-impact-wrench-3-8-in-drive-170-ft-lb","provider":"Voomi Supply","version":"1.0","type":"link"}