{"product_id":"tru-maxx-51032407m-square-polishing-stone-320-grit-4-in","title":"Tru-maxx 51032407M Square Polishing Stone 320 Grit 4 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe TRU-MAXX 51032407M is a square aluminum oxide polishing stone designed for fine surface finishing and deburring work. At 320 grit, this extra fine stone removes light tool marks, smooths machined surfaces, and refines edges without aggressive material removal. The 4-inch overall length gives the technician a solid grip for controlled hand lapping and honing tasks. Aluminum oxide construction provides consistent abrasive action across ferrous and non-ferrous metals, making this stone a reliable bench tool in machine shops, maintenance environments, and fabrication settings. It is not oil-filled, so it works dry or with a light honing oil applied by the user.\u003c\/p\u003e\n\u003cp\u003eThis polishing stone suits applications where surface finish quality matters — final passes on mating surfaces, valve lapping, die and mold finishing, and precision fit work on machined components. Machinists, tool and die makers, and maintenance technicians commonly reach for a 320-grit extra fine stone when the goal is smoothing rather than shaping. The square profile allows flat face contact on flat workpieces and edge work in corners or slots.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e320 grit extra fine aluminum oxide for light stock removal and surface refinement\u003c\/li\u003e\n  \u003cli\u003eSquare profile provides flat contact for flat surfaces and access to inside corners\u003c\/li\u003e\n  \u003cli\u003e4-inch overall length for comfortable hand control during lapping and honing\u003c\/li\u003e\n  \u003cli\u003eNot oil-filled — use dry or apply honing oil as needed for the application\u003c\/li\u003e\n  \u003cli\u003e1 inch x 1 inch cross-section for consistent abrasive contact area\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a general-purpose hand polishing stone suitable for use on ferrous metals, non-ferrous metals, and hardened tool steel surfaces requiring extra fine finishing.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eHand polishing stones require no power tools or mechanical mounting. Secure the workpiece in a vise or on a stable surface before use. Apply light, even pressure with consistent stroke direction for uniform surface finish results. Keep the stone clean and flat — dress or replace if glazing occurs.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShape\u003c\/strong\u003e: Square\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStone Material\u003c\/strong\u003e: Aluminum Oxide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGrade\u003c\/strong\u003e: Extra Fine\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGrit\u003c\/strong\u003e: 320\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeight\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOil Filled\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1 pound\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: TRU-MAXX\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 51032407M\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TRU-MAXX","offers":[{"title":"Default Title","offer_id":51739242692914,"sku":"51032407M","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/7821123c6277833145e3217a4860cd63.jpg?v=1788811997","url":"https:\/\/voomisupply.com\/products\/tru-maxx-51032407m-square-polishing-stone-320-grit-4-in","provider":"Voomi Supply","version":"1.0","type":"link"}