{"product_id":"walter-12c221-plug-18r-3-x-4-zirconia-alumina-threaded-grinding-wheel","title":"WALTER WAL-12C221 - Plug 18R 3\" x 4\" Zirconia Alumina Threaded Grinding Wheel","description":"\u003cp\u003eThe Walter 12C221 is a high-performance 18R-shaped grinding plug engineered for aggressive material removal in the most demanding industrial environments. Constructed with premium Zirconia Alumina (ZA) grains, this 16-grit abrasive tool provides an exceptionally fast cut rate and extended service life when working on both steel and stainless steel. Designed for foundries, steel mills, and heavy fabrication shops, it excels at cleaning, shaping, and deburring internal and external contours in hard-to-reach areas.\u003c\/p\u003e\u003ch4\u003ePerformance Features\u003c\/h4\u003e\u003cul\u003e  \u003cli\u003e\n\u003cstrong\u003eRapid Material Removal:\u003c\/strong\u003e Coarse 16-grit Zirconia Alumina grains ensure high-speed stock removal and superior grinding efficiency.\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eDirect Mounting:\u003c\/strong\u003e Features an internal threaded 5\/8\"-11 arbor for quick, tool-free installation directly onto high-speed die grinders.\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eIndustrial Durability:\u003c\/strong\u003e Optimized bond system provides long life and resists loading during heavy-duty snagging and offhand grinding.\u003c\/li\u003e  \u003cli\u003e\n\u003cstrong\u003eVersatile Application:\u003c\/strong\u003e Ideal for deburring welds, cleaning internal castings, and blending contours on steel and stainless steel surfaces.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003ctable style=\"width:100%; border-collapse: collapse; margin: 20px 0;\"\u003e  \u003cthead\u003e    \u003ctr style=\"background-color: #f2f2f2; text-align: left;\"\u003e      \u003cth style=\"padding: 10px; border: 1px solid #ddd;\"\u003eSpecification\u003c\/th\u003e      \u003cth style=\"padding: 10px; border: 1px solid #ddd;\"\u003eDetail\u003c\/th\u003e    \u003c\/tr\u003e  \u003c\/thead\u003e  \u003ctbody\u003e    \u003ctr\u003e      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eShape\u003c\/td\u003e      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eType 18R (Plug)\u003c\/td\u003e    \u003c\/tr\u003e    \u003ctr\u003e      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eDimensions\u003c\/td\u003e      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e3\" Diameter x 4\" Length\u003c\/td\u003e    \u003c\/tr\u003e    \u003ctr\u003e      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eArbor Size\u003c\/td\u003e      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e5\/8\"-11 Threaded\u003c\/td\u003e    \u003c\/tr\u003e    \u003ctr\u003e      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eAbrasive Material\u003c\/td\u003e      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eZirconia Alumina (ZA)\u003c\/td\u003e    \u003c\/tr\u003e    \u003ctr\u003e      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eGrit\u003c\/td\u003e      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e16 (Coarse)\u003c\/td\u003e    \u003c\/tr\u003e    \u003ctr\u003e      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eMaximum RPM\u003c\/td\u003e      \u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e12,100 RPM\u003c\/td\u003e    \u003c\/tr\u003e  \u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch4\u003eWhat's Included\u003c\/h4\u003e\u003cul\u003e  \u003cli\u003e1 x Walter 12C221 Plug 18R 3\" x 4\" (Note: Typically sold in industrial packs of 10)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"WALTER","offers":[{"title":"Default Title","offer_id":53458116116846,"sku":"WAL-12C221","price":33.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0057\/0333\/6025\/files\/Untitled-2026-03-19T142555.106_1.jpg?v=1773905187","url":"https:\/\/wiselinetools.ca\/de-de\/products\/walter-12c221-plug-18r-3-x-4-zirconia-alumina-threaded-grinding-wheel","provider":"Wise Line Tools","version":"1.0","type":"link"}