{"product_id":"dynabrade-52721","title":"DYNABRADE Cone Or Plug 6\" (152 mm) Extension Wheel Grinder - 52721","description":"\u003ch2\u003eDYNABRADE Cone Or Plug 6\" (152 mm) Extension Wheel Grinder - 52721\u003c\/h2\u003e\n\u003cul class=\"list list-icons list-primary list-borders\"\u003e\n\u003cli\u003e\u003cspan\u003e1 hp, Straight-Line, 18,000 RPM, Rear Exhaust, 3\/8\"-24 Spindle Thread.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eCone or Plug 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\u003eStraight Line, 1 hp, Rear Exhaust, 6\" Extension, 18,000 RPM.\u003c\/li\u003e\n\u003cli\u003e\n\u003ci class=\"fa fa-caret-right\"\u003e\u003c\/i\u003eAccepts optional Abrasive Cone or Plug Wheel, 1-1\/4\" diameter. Governor-controlled motor maintains RPM under heavy load.\u003c\/li\u003e\n\u003cli\u003e\n\u003ci class=\"fa fa-caret-right\"\u003e\u003c\/i\u003eSafety-lock lever is included on all models. Standard cushioned grip enhances operator comfort and offers additional control.\u003c\/li\u003e\n\u003cli\u003e\n\u003ci class=\"fa fa-caret-right\"\u003e\u003c\/i\u003eIndustrial applications in fabrication plants, welding shops, foundries, steel mills and shipyards.\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-amwm{font-weight:bold;text-align:center;vertical-align:top}\n\u003c\/style\u003e\n\u003ctable class=\"tg\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth class=\"tg-amwm\"\u003eAir Consumption (SCFM)\u003c\/th\u003e\n\u003cth class=\"tg-cly1\"\u003e40.0\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-amwm\"\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-amwm\"\u003eMax. RPM\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003e18,000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-amwm\"\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-amwm\"\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-amwm\"\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-amwm\"\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-amwm\"\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-amwm\"\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-amwm\"\u003eMotor Type\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003eRotary Vane\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-amwm\"\u003eHeight in. (mm)\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003e1.875\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-amwm\"\u003eLength in. (mm)\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003e14.375\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-amwm\"\u003eWeight lb. (kg)\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003e3.46\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-amwm\"\u003eWidth in. (mm)\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003e5.75\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-amwm\"\u003ePkg. Height in. (mm)\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003e3.25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-amwm\"\u003ePkg. Length in. (mm)\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003e16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-amwm\"\u003ePkg. Weight 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-amwm\"\u003ePkg. Width in. (mm)\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003e5.75\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-amwm\"\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-amwm\"\u003eEAN (UPC)\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003e0616026527218\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-amwm\"\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-amwm\"\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\u003e\n\u003cbr\u003eWhat our Experts Think\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli data-section-id=\"uwfy4u\" data-start=\"27\" data-end=\"288\"\u003eThe \u003cstrong data-start=\"33\" data-end=\"89\"\u003eDynabrade 52721 Cone or Plug Extension Wheel Grinder\u003c\/strong\u003e is a \u003cstrong data-start=\"95\" data-end=\"135\"\u003eprofessional-grade pneumatic grinder\u003c\/strong\u003e built for weld preparation, metal finishing, and hard-to-reach grinding applications in industrial environments. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1vex8i3\" data-start=\"289\" data-end=\"530\"\u003eFeatures a \u003cstrong data-start=\"302\" data-end=\"333\"\u003e6-inch extended reach shaft\u003c\/strong\u003e, allowing operators to access confined areas, deep weld seams, pipes, castings, and fabrication assemblies more effectively than standard straight grinders. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"zgghuc\" data-start=\"531\" data-end=\"735\"\u003ePowered by a \u003cstrong data-start=\"546\" data-end=\"595\"\u003e1 HP air motor with governor-controlled speed\u003c\/strong\u003e, maintaining consistent performance under heavy load for smoother, more efficient material removal. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1s4c6ni\" data-start=\"736\" data-end=\"946\"\u003eOperates at \u003cstrong data-start=\"750\" data-end=\"764\"\u003e18,000 RPM\u003c\/strong\u003e, delivering aggressive grinding capability while remaining compatible with cone and plug wheels up to approximately 1-1\/4 inches in diameter. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1vei633\" data-start=\"947\" data-end=\"1150\"\u003eEquipped with a \u003cstrong data-start=\"965\" data-end=\"1007\"\u003erear exhaust design and cushioned grip\u003c\/strong\u003e, helping improve operator comfort during extended use while directing exhaust away from the work area. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1yjxcnh\" data-start=\"1151\" data-end=\"1342\"\u003eIncludes a \u003cstrong data-start=\"1164\" data-end=\"1194\"\u003esafety-lock throttle lever\u003c\/strong\u003e, an important feature for fabrication shops, foundries, shipyards, and industrial maintenance environments. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"gjxucv\" data-start=\"1343\" data-end=\"1565\"\u003eBuilt for demanding professional use with a \u003cstrong data-start=\"1389\" data-end=\"1475\"\u003e3\/8\"-24 spindle thread, 40 SCFM airflow rating, and rugged industrial construction\u003c\/strong\u003e designed to withstand daily production workloads. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"4qi6lf\" data-start=\"1566\" data-end=\"1826\" data-is-last-node=\"\"\u003eBest suited for professionals who need a \u003cstrong data-start=\"1609\" data-end=\"1740\"\u003ehigh-performance extended-reach grinder for precision grinding, weld cleanup, and surface preparation in difficult-access areas\u003c\/strong\u003e, rather than general-purpose workshop grinding.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003e   \u003cbr\u003eQ\u0026amp;A    \u003c\/h5\u003e\n\u003cp data-start=\"0\" data-end=\"303\"\u003e\u003cstrong data-start=\"0\" data-end=\"81\"\u003eQ: What is the Dynabrade 52721 Cone or Plug Extension Wheel Grinder used for?\u003c\/strong\u003e\u003cbr data-start=\"81\" data-end=\"84\"\u003eA: It is a professional \u003cstrong data-start=\"108\" data-end=\"145\"\u003epneumatic extension wheel grinder\u003c\/strong\u003e designed for cleaning metal, grinding weld seams, deburring, and removing surface imperfections in hard-to-reach areas. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"305\" data-end=\"556\"\u003e\u003cstrong data-start=\"305\" data-end=\"367\"\u003eQ: What makes the 52721 different from a standard grinder?\u003c\/strong\u003e\u003cbr data-start=\"367\" data-end=\"370\"\u003eA: It features a \u003cstrong data-start=\"387\" data-end=\"413\"\u003e6-inch extension shaft\u003c\/strong\u003e that provides better access inside pipes, corners, fabricated assemblies, and other confined work areas. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"558\" data-end=\"798\"\u003e\u003cstrong data-start=\"558\" data-end=\"597\"\u003eQ: What are the key specifications?\u003c\/strong\u003e\u003cbr data-start=\"597\" data-end=\"600\"\u003eA: The grinder features a \u003cstrong data-start=\"626\" data-end=\"644\"\u003e1 HP air motor\u003c\/strong\u003e, \u003cstrong data-start=\"646\" data-end=\"671\"\u003e18,000 RPM free speed\u003c\/strong\u003e, \u003cstrong data-start=\"673\" data-end=\"689\"\u003erear exhaust\u003c\/strong\u003e, and a \u003cstrong data-start=\"697\" data-end=\"723\" data-is-only-node=\"\"\u003e3\/8\"-24 spindle thread\u003c\/strong\u003e for cone and plug wheel accessories. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"800\" data-end=\"1037\"\u003e\u003cstrong data-start=\"800\" data-end=\"839\"\u003eQ: What abrasive wheels can it use?\u003c\/strong\u003e\u003cbr data-start=\"839\" data-end=\"842\"\u003eA: It is designed for \u003cstrong data-start=\"864\" data-end=\"928\"\u003econe and plug grinding wheels up to 1-1\/4 inches in diameter\u003c\/strong\u003e, making it ideal for precision grinding and weld cleanup applications. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1039\" data-end=\"1268\"\u003e\u003cstrong data-start=\"1039\" data-end=\"1085\"\u003eQ: What industries commonly use this tool?\u003c\/strong\u003e\u003cbr data-start=\"1085\" data-end=\"1088\"\u003eA: It is widely used in \u003cstrong data-start=\"1112\" data-end=\"1229\"\u003efabrication shops, welding operations, foundries, steel mills, shipyards, and 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=\"9ir004\" data-start=\"110\" data-end=\"213\"\u003eLubricate the air motor daily with pneumatic tool oil to reduce vane wear and maintain performance.\u003c\/li\u003e\n\u003cli data-section-id=\"4dfwex\" data-start=\"214\" data-end=\"319\"\u003eUse clean, dry compressed air at the recommended 90 PSI to prevent internal corrosion and power loss.\u003c\/li\u003e\n\u003cli data-section-id=\"ap3dj2\" data-start=\"320\" data-end=\"427\"\u003eInspect cone or plug wheels before use and replace any cracked, damaged, or excessively worn abrasives.\u003c\/li\u003e\n\u003cli data-section-id=\"6ctob5\" data-start=\"428\" data-end=\"522\"\u003eCheck the 6\" extension shaft and spindle threads regularly for wear, damage, or looseness.\u003c\/li\u003e\n\u003cli data-section-id=\"7ojpgd\" data-start=\"523\" data-end=\"607\"\u003eKeep exhaust ports free of dust and debris to ensure proper airflow and cooling.\u003c\/li\u003e\n\u003cli data-section-id=\"tjyj1e\" data-start=\"608\" data-end=\"710\"\u003eVerify all fittings, hoses, and air connections are leak-free for consistent 18,000 RPM operation.\u003c\/li\u003e\n\u003cli data-section-id=\"x9g2iv\" data-start=\"711\" data-end=\"841\"\u003eDo not exceed the maximum rated wheel size or operating speed to prevent safety hazards. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"18d897l\" data-start=\"842\" data-end=\"926\"\u003eInspect the safety-lock lever and throttle for smooth operation before each use.\u003c\/li\u003e\n\u003cli data-section-id=\"pco7w4\" data-start=\"927\" data-end=\"1028\"\u003eStore in a clean, dry environment to protect internal components from moisture and contamination.\u003c\/li\u003e\n\u003cli data-section-id=\"jwlyc1\" data-start=\"1029\" data-end=\"1186\" data-is-last-node=\"\"\u003ePeriodically check vibration levels and tool balance, as excessive vibration can accelerate bearing and spindle wear.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DYNABRADE","offers":[{"title":"Default Title","offer_id":45769075491007,"sku":"52721","price":524.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0683\/5703\/0079\/files\/52721.jpg?v=1782296461","url":"https:\/\/www.mybackyardzone.com\/products\/dynabrade-52721","provider":"Your Outdoor Setup Starts Here","version":"1.0","type":"link"}