{"product_id":"dynabrade-52380","title":"DYNABRADE 4\" (102 mm) Dia. Straight-Line Type 1 Extension Wheel Grinder - 52380","description":"\u003ch2\u003eDYNABRADE 4\" (102 mm) Dia. Straight-Line Type 1 Extension Wheel Grinder - 52380\u003c\/h2\u003e\n\u003cul class=\"list list-icons list-primary list-borders\"\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e \u003cspan\u003e1 hp, 15,000 RPM, Rear Exhaust, 3\/8\"-24 Spindle Thread.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eType 1 Wheel Grinder, for cleaning metal, grinding and smoothing weld seams, removing imperfections before painting.\u003c\/li\u003e\n\u003cli\u003e\n\u003ci class=\"fa fa-caret-right\"\u003e\u003c\/i\u003e4\" Diameter, Straight Line, 1 hp, 6\" Extension, 15,000 RPM.\u003c\/li\u003e\n\u003cli\u003e\n\u003ci class=\"fa fa-caret-right\"\u003e\u003c\/i\u003eAccepts optional 4\" diameter Type 1 Wheel, with 3\/8\" center hole (maximum wheel width of 1\/4\").\u003c\/li\u003e\n\u003cli\u003e\n\u003ci class=\"fa fa-caret-right\"\u003e\u003c\/i\u003eGovernor-controlled motor maintains RPM under heavy load; rear exhaust. Safety-lock lever is included on all models.\u003c\/li\u003e\n\u003cli\u003e\n\u003ci class=\"fa fa-caret-right\"\u003e\u003c\/i\u003eStandard cushioned grip enhances operator comfort and allows additional control.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eSpecifications   \u003c\/h5\u003e\n\u003cstyle type=\"text\/css\"\u003e\n.tg  {border-collapse:collapse;border-spacing:0;}\n.tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;\n  overflow:hidden;padding:10px 5px;word-break:normal;}\n.tg th{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;\n  font-weight:normal;overflow:hidden;padding:10px 5px;word-break:normal;}\n.tg .tg-cly1{text-align:left;vertical-align:middle}\n.tg .tg-wa1i{font-weight:bold;text-align:center;vertical-align:middle}\n\u003c\/style\u003e\n\u003ctable class=\"tg\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth class=\"tg-wa1i\"\u003eAir Consumption (SCFM)\u003c\/th\u003e\n\u003cth class=\"tg-cly1\"\u003e39.0\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-wa1i\"\u003ePower (hp)\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003e1.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-wa1i\"\u003eMax. RPM\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003e15,000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-wa1i\"\u003eTool Spindle Thread\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003e3\/8\" - 24 Male\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-wa1i\"\u003eAir Inlet Thread\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003e3\/8\" NPT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-wa1i\"\u003eExhaust Type\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003eRear\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-wa1i\"\u003eGL_Country Of Origin\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003eUS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-wa1i\"\u003eHose I.D. in. (mm)\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003e3\/8\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-wa1i\"\u003eVacuum Type\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003eNon-Vacuum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-wa1i\"\u003eHeight in. (mm)\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003e4.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-wa1i\"\u003eLength in. (mm)\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003e11.25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-wa1i\"\u003eWeight lb. (kg)\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003e4.41\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-wa1i\"\u003eWidth in. (mm)\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003e9.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-wa1i\"\u003ePkg. Height in. (mm)\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003e4.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-wa1i\"\u003ePkg. Length in. (mm)\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003e14.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-wa1i\"\u003ePkg. Weight lb. (kg)\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003e5.95\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-wa1i\"\u003ePkg. Width in. (mm)\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003e9.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-wa1i\"\u003eCE Certified\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-wa1i\"\u003eEAN (UPC)\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003e0616026523807\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-wa1i\"\u003eEAC Certified\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-wa1i\"\u003eTool Style\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003eStraight Line\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch5\u003eWhat our Experts Think    \u003c\/h5\u003e\n\u003cul\u003e\n\u003cli data-section-id=\"1xgusrw\" data-start=\"27\" data-end=\"245\"\u003eThe \u003cstrong data-start=\"33\" data-end=\"109\"\u003eDynabrade 52380 4\" (102 mm) Straight-Line Type 1 Extension Wheel Grinder\u003c\/strong\u003e is a \u003cstrong data-start=\"115\" data-end=\"158\"\u003ehigh-speed industrial pneumatic grinder\u003c\/strong\u003e designed for aggressive metal removal, weld cleanup, and internal surface finishing.\u003c\/li\u003e\n\u003cli data-section-id=\"1pmj0ce\" data-start=\"246\" data-end=\"449\"\u003ePowered by a \u003cstrong data-start=\"261\" data-end=\"299\"\u003e1 HP governor-controlled air motor\u003c\/strong\u003e, it maintains stable RPM under load for consistent cutting performance in demanding fabrication environments. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"sv13gv\" data-start=\"450\" data-end=\"639\"\u003eDelivers \u003cstrong data-start=\"461\" data-end=\"492\"\u003e~15,000 RPM operating speed\u003c\/strong\u003e, making it suitable for fast material removal using Type 1 abrasive wheels on steel and structural metals. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"hmjql8\" data-start=\"640\" data-end=\"844\"\u003eFeatures a \u003cstrong data-start=\"653\" data-end=\"718\"\u003e4\" (102 mm) Type 1 wheel capacity with 3\/8\"-24 spindle thread\u003c\/strong\u003e, optimized for controlled grinding and weld seam blending before painting or coating. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1eymcn7\" data-start=\"845\" data-end=\"1058\"\u003eIncludes a \u003cstrong data-start=\"858\" data-end=\"891\"\u003e6-inch extension shaft design\u003c\/strong\u003e, allowing access into recessed, internal, or hard-to-reach fabrication areas where standard grinders cannot reach effectively. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"wnzdtv\" data-start=\"1059\" data-end=\"1267\"\u003eBuilt with \u003cstrong data-start=\"1072\" data-end=\"1146\"\u003erear exhaust, safety-lock throttle, and cushioned straight-line handle\u003c\/strong\u003e, improving operator control, comfort, and durability during continuous-duty use. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"ylbk4g\" data-start=\"1268\" data-end=\"1444\"\u003eDesigned for \u003cstrong data-start=\"1283\" data-end=\"1310\"\u003eindustrial applications\u003c\/strong\u003e such as fabrication shops, shipyards, steel structures, and heavy maintenance work—not light finishing or general-purpose grinding.\u003c\/li\u003e\n\u003cli data-section-id=\"1ysjxqi\" data-start=\"1446\" data-end=\"1693\" data-is-last-node=\"\"\u003eBest suited for professionals who need a \u003cstrong data-start=\"1489\" data-end=\"1612\"\u003ehigh-torque extended-reach wheel grinder for weld smoothing, casting cleanup, and internal metalwork in confined spaces\u003c\/strong\u003e, where precision access and sustained power matter more than surface refinement.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003e\n\u003cbr\u003eQ\u0026amp;A    \u003c\/h5\u003e\n\u003cp data-start=\"0\" data-end=\"260\"\u003e\u003cstrong data-start=\"0\" data-end=\"92\"\u003eQ: What is the Dynabrade 52380 4\" Straight-Line Type 1 Extension Wheel Grinder used for?\u003c\/strong\u003e\u003cbr data-start=\"92\" data-end=\"95\"\u003eA: It is a \u003cstrong data-start=\"106\" data-end=\"138\"\u003ehigh-speed pneumatic grinder\u003c\/strong\u003e designed for \u003cstrong data-start=\"152\" data-end=\"230\"\u003eheavy-duty metal removal, weld cleanup, deburring, and surface preparation\u003c\/strong\u003e using Type 1 abrasive wheels.\u003c\/p\u003e\n\u003cp data-start=\"262\" data-end=\"464\"\u003e\u003cstrong data-start=\"262\" data-end=\"308\"\u003eQ: What makes the extension design useful?\u003c\/strong\u003e\u003cbr data-start=\"308\" data-end=\"311\"\u003eA: It has a \u003cstrong data-start=\"323\" data-end=\"349\"\u003e6-inch extension shaft\u003c\/strong\u003e that allows access into \u003cstrong data-start=\"374\" data-end=\"414\"\u003edeep, narrow, or hard-to-reach areas\u003c\/strong\u003e like inside frames, channels, and recessed welds.\u003c\/p\u003e\n\u003cp data-start=\"466\" data-end=\"715\"\u003e\u003cstrong data-start=\"466\" data-end=\"505\"\u003eQ: What are its key specifications?\u003c\/strong\u003e\u003cbr data-start=\"505\" data-end=\"508\"\u003eA: It features a \u003cstrong data-start=\"525\" data-end=\"629\"\u003e1 HP air motor, 4\" wheel capacity, 15,000 RPM speed, 3\/8\"-24 spindle thread, and rear exhaust design\u003c\/strong\u003e, delivering strong industrial grinding power. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"717\" data-end=\"891\"\u003e\u003cstrong data-start=\"717\" data-end=\"753\"\u003eQ: What materials is it used on?\u003c\/strong\u003e\u003cbr data-start=\"753\" data-end=\"756\"\u003eA: It is commonly used on \u003cstrong data-start=\"782\" data-end=\"849\"\u003esteel, stainless steel, cast iron, and welded fabrication parts\u003c\/strong\u003e for aggressive stock removal and cleanup.\u003c\/p\u003e\n\u003cp data-start=\"893\" data-end=\"1029\"\u003e\u003cstrong data-start=\"893\" data-end=\"934\"\u003eQ: Is it for finishing or rough work?\u003c\/strong\u003e\u003cbr data-start=\"934\" data-end=\"937\"\u003eA: It is primarily for \u003cstrong data-start=\"960\" data-end=\"995\"\u003erough grinding and weld removal\u003c\/strong\u003e, not fine finishing or polishing.\u003c\/p\u003e\n\u003cp data-start=\"1031\" data-end=\"1185\"\u003e\u003cstrong data-start=\"1031\" data-end=\"1061\"\u003eQ: What industries use it?\u003c\/strong\u003e\u003cbr data-start=\"1061\" data-end=\"1064\"\u003eA: It is used in \u003cstrong data-start=\"1081\" data-end=\"1184\"\u003efabrication shops, shipyards, steel mills, foundries, and heavy industrial maintenance environments\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch5\u003e\n\u003cbr\u003eMaintenance Tips    \u003c\/h5\u003e\n\u003cul\u003e\n\u003cli data-section-id=\"19i5zcw\" data-start=\"118\" data-end=\"212\"\u003eLubricate air motor daily with pneumatic tool oil to maintain smooth high-speed operation.\u003c\/li\u003e\n\u003cli data-section-id=\"1s1bfg4\" data-start=\"213\" data-end=\"305\"\u003eUse clean, dry compressed air at recommended PSI to prevent corrosion and internal wear.\u003c\/li\u003e\n\u003cli data-section-id=\"12v06ig\" data-start=\"306\" data-end=\"419\"\u003eInspect 4\" Type 1 grinding wheels before use; replace any cracked, chipped, or unbalanced wheels immediately.\u003c\/li\u003e\n\u003cli data-section-id=\"12xd405\" data-start=\"420\" data-end=\"510\"\u003eCheck extension shaft, spindle, and wheel mounting for tightness and proper alignment.\u003c\/li\u003e\n\u003cli data-section-id=\"oyjtcd\" data-start=\"511\" data-end=\"608\"\u003eKeep air inlet and exhaust ports clear of grinding dust to ensure proper airflow and cooling.\u003c\/li\u003e\n\u003cli data-section-id=\"m05njh\" data-start=\"609\" data-end=\"705\"\u003eEnsure hoses and fittings are leak-free to maintain consistent RPM and grinding performance.\u003c\/li\u003e\n\u003cli data-section-id=\"gop0ml\" data-start=\"706\" data-end=\"784\"\u003eDo not exceed rated wheel speed to avoid wheel failure and safety hazards.\u003c\/li\u003e\n\u003cli data-section-id=\"1dndmly\" data-start=\"785\" data-end=\"885\"\u003eMonitor vibration during operation; excessive vibration may indicate imbalance or worn bearings.\u003c\/li\u003e\n\u003cli data-section-id=\"10kuzhm\" data-start=\"886\" data-end=\"961\"\u003eClean tool body after each use to remove metal dust and debris buildup.\u003c\/li\u003e\n\u003cli data-section-id=\"1vld93q\" data-start=\"962\" data-end=\"1071\" data-is-last-node=\"\"\u003eStore in a dry, clean environment to protect internal air motor and components from moisture and corrosion.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DYNABRADE","offers":[{"title":"Default Title","offer_id":45769236021439,"sku":"52380","price":632.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0683\/5703\/0079\/files\/52380.jpg?v=1782303578","url":"https:\/\/www.mybackyardzone.com\/products\/dynabrade-52380","provider":"Your Outdoor Setup Starts Here","version":"1.0","type":"link"}