{"product_id":"3-inch-grinding-disc-sti","title":"3 Inch Grinding Disc for STI PrepMaster Grinders","description":"\u003cp class=\"p1\"\u003e\u003cb\u003e3 Inch Grinding Disc for STI PrepMaster Grinders\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003eThe 3 Inch Grinding Disc for STI PrepMaster grinders is designed for professional concrete and terrazzo floor grinding applications. Built for durability and consistent performance, each disc features three 8mm-tall diamond segments for efficient material removal and smooth grinding results.\u003c\/p\u003e\n\u003ch4\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eTwo Pin Options\u003c\/b\u003e\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp class=\"p1\"\u003eTwo pin configurations are available: two round pins and two square pins. Please check the tool plate on your STI PrepMaster grinder and select the matching pin configuration before ordering.\u003c\/p\u003e\n\u003cp class=\"p2\"\u003e\u003cb\u003eRound Pins\u003c\/b\u003e – Two round locating pins\u003cbr\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eSquare Pins\u003c\/b\u003e\u003c\/span\u003e – Two square locating pins\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0871\/0501\/2027\/files\/M90004ACE_1_1111.jpg?v=1781521288\" alt=\"\" width=\"173\" height=\"173\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0871\/0501\/2027\/files\/STI_ROUND_PINS.jpg?v=1781441805\" alt=\"\" width=\"173\" height=\"173\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eKey Features\u003c\/b\u003e\u003c\/span\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eCompatible with STI PrepMaster grinders\u003c\/li\u003e\n\u003cli\u003e3-inch grinding disc\u003c\/li\u003e\n\u003cli\u003eThree diamond segments\u003c\/li\u003e\n\u003cli\u003e8mm segment height\u003c\/li\u003e\n\u003cli\u003eRound pin and square pin options available\u003c\/li\u003e\n\u003cli\u003eDesigned for concrete and terrazzo floors\u003c\/li\u003e\n\u003cli\u003eDurable construction for professional floor preparation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch6\u003eGrit Options\u003c\/h6\u003e\n\u003cp dir=\"auto\"\u003eAll of our grinding tooling comes with a comprehensive range of grit sizes to cover every stage of surface preparation and polishing. Available grit options include 6#, 16\/20#, 16#, 20#, 30#, 30\/40#, 50#, 60\/80#, 60#, 70#, 80\/100#, 80#, 100#, 100\/120#, 120#, 150#, and 200#. \u003c\/p\u003e\n\u003cp\u003eEach grit size is designed to optimize results at different steps of the concrete polishing process. This variety makes the 3inch Grinding Disc Compatible with STI PrepMaster a flexible choice for all project types.\u003c\/p\u003e\n\u003ch6\u003eBond Options Based on Surface Hardness\u003c\/h6\u003e\n\u003cp\u003e\u003cstrong\u003eChoosing the right bond\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis critical for optimizing your grinding outcomes. It also helps extend the lifespan of your\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003econcrete floor grinding tool\u003c\/strong\u003e\u003c\/span\u003e. This item offers various bond options tailored to different surface hardness levels.\u003c\/p\u003e\n\u003ch6\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0871\/0501\/2027\/files\/bond_psi_mohs_20260504.png?v=1777895477\"\u003e\u003c\/h6\u003e\n\u003ch6\u003ePackaging\u003c\/h6\u003e\n\u003cp\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;\"\u003eAll tooling comes in a reliable packaging that ensures product safety during transit. Each set is securely packed in a sturdy brown box. The box comes with a clear specification label showing product details.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch6\u003eField-Tested and Approved Quality\u003c\/h6\u003e\n\u003cp\u003eOur tooling undergoes daily testing by our sister company,\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/customconcreteprepandpolish.com\/\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003eCustom Concrete Prep \u0026amp; Polish\u003c\/strong\u003e\u003c\/a\u003e. With over a decade of expert experience in professional concrete grinding, they ensure the tooling meets industry standards for quality and performance.\u003c\/p\u003e\n\u003ch6\u003eExplore More\u003c\/h6\u003e\n\u003cp\u003eExplore the full\u003cspan\u003e \u003c\/span\u003e\u003ca rel=\"noopener\" href=\"https:\/\/acediamondtooling.com\/collections\/fit-sti-prep-master-machines\" target=\"_blank\"\u003eT\u003cspan style=\"text-decoration: underline;\"\u003eooling Collec\u003c\/span\u003etion Compatible with STI Prep\/Master Machines\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eto find other complementary products. You can also learn more about our company and values on our\u003cspan\u003e \u003c\/span\u003e\u003ca rel=\"noopener\" href=\"https:\/\/acediamondtooling.com\/pages\/who-we-are\" target=\"_blank\"\u003eabout page\u003c\/a\u003e.\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch6\u003eNote:\u003c\/h6\u003e\n\u003cp\u003eACE Diamond Tooling is an independent manufacturer. \u003cspan\u003e \u003c\/span\u003eSTI Prep\/Master Machines are trademarks of their respective owners. ACE products are not manufactured by or affiliated withSTI Prep\/Master Machines.\u003c\/p\u003e\n\u003c!----\u003e","brand":"ACE Diamond Tooling","offers":[{"title":"Please Select \/ Please Select","offer_id":51349345173819,"sku":"M90006ACE","price":21.56,"currency_code":"USD","in_stock":true},{"title":"Please Select \/ Two Round Pins-see picture","offer_id":51349345206587,"sku":"M90006ACE","price":21.56,"currency_code":"USD","in_stock":true},{"title":"Please Select \/ Two Square Pins-see picture","offer_id":51349345239355,"sku":"M90006ACE","price":21.56,"currency_code":"USD","in_stock":true},{"title":"6 \/ Please Select","offer_id":51349345272123,"sku":"M90006ACE","price":21.56,"currency_code":"USD","in_stock":true},{"title":"6 \/ Two Round Pins-see picture","offer_id":51349345304891,"sku":"M90006ACE","price":21.56,"currency_code":"USD","in_stock":true},{"title":"6 \/ Two Square Pins-see 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