{"product_id":"20lb-60-90-silicon-carbide-grit-for-rock-tumblers-coarse-shaping","title":"20lb 60\/90 Silicon Carbide Grit for Rock Tumblers - Coarse Shaping","description":"\u003cp\u003eOur review of the 20lb bag of 60\/90 silicon carbide grit finds it best suited for hobbyists and small shops that need a reliable coarse abrasive for the first stage of rock tumbling. The single biggest reason to buy is its consistent 60\/90 grading that provides aggressive initial shaping and fast material removal, making it a practical choice for lake glass, sea glass, and rough stones. The review notes the grit is compatible with any brand of rock tumbler and emphasizes the appeal of buying from a Disabled and Veteran Owned company based in the USA.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003ePremium 60\/90 grading:\u003c\/strong\u003e Provides a coarse, aggressive cut for efficient initial shaping of stones in stage one of tumbling.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eUniversal compatibility:\u003c\/strong\u003e Works with any brand of rock tumbler so users do not need specialized media for their machine.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eLarge 20lb quantity:\u003c\/strong\u003e Supplies multiple batches or extended projects without frequent repurchase, which is useful for regular tumblers.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eRough texture for vibratory use:\u003c\/strong\u003e The coarse particles perform well in vibratory tumblers and on materials like lake glass and sea glass.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eMade by an American owned company:\u003c\/strong\u003e Manufactured and sold by a Disabled and Veteran Owned business located in Pecatonica, Illinois, providing a domestic sourcing option.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis grit is aimed at hobbyists, rock tumbling enthusiasts, and small craft shops that need a dependable first-stage abrasive for shaping and heavy material removal. It is especially useful for people working with rough stones, sea glass, or lake glass who want a coarse grit that breaks down predictably to prepare pieces for finer stages.\u003c\/p\u003e\n\u003cp\u003eThose seeking a final polish or expecting immediate high shine after stage one should look elsewhere, since 60\/90 is explicitly a coarse shaping grit meant to be followed by finer grits and polishing stages. Also, users who need very slow-wearing or ultra-high-consistency media for industrial processes may prefer specialized abrasives.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003eConsistent coarse cut that speeds up initial shaping and reduces manual pre-work.\u003c\/li\u003e\n \u003cli\u003eGood value for the 20lb quantity, letting users run multiple batches without repurchasing quickly.\u003c\/li\u003e\n \u003cli\u003eCompatible with any brand of tumbler, simplifying use across machines.\u003c\/li\u003e\n \u003cli\u003eDomestic, Disabled and Veteran Owned business sourcing for buyers who prefer American-made suppliers.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003eBecause it is coarse, this grit will not produce shine; a full multi-stage process is required for polish.\u003c\/li\u003e\n \u003cli\u003eSome customers report the grit can break down sooner than expected under heavy use, affecting longevity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n \u003ctr\u003e\n\u003ctd\u003eProduct name\u003c\/td\u003e\n\u003ctd\u003e20lb 60\/90 Silicon Carbide Grit\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eGrit grade\u003c\/td\u003e\n\u003ctd\u003e60\/90 (coarse)\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eIntended stage\u003c\/td\u003e\n\u003ctd\u003eStage 1 - initial shaping\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eCompatible with any brand of rock tumbler\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eQuantity\u003c\/td\u003e\n\u003ctd\u003e20 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eCompany\u003c\/td\u003e\n\u003ctd\u003eDisabled and Veteran Owned, Pecatonica, Illinois, USA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe 20lb 60\/90 silicon carbide grit is a sensible purchase for rock tumblers when aggressive initial shaping is required; it delivers predictable coarse cutting and good value for frequent users. Hobbyists and small shops that follow a multi-stage tumbling process will appreciate the compatibility and quantity, while those wanting immediate shine should plan to follow this with finer grits and polishing compounds.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eIs this grit suitable for vibratory tumblers?\u003c\/strong\u003e\u003cbr\u003eYes, the coarse 60\/90 texture is effective in vibratory tumblers and works well on glass and rough stones.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill this product produce a final polish?\u003c\/strong\u003e\u003cbr\u003eNo, this grit is for stage one shaping; achieve shine by progressing through finer grits and a dedicated polishing stage.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhere is this product made?\u003c\/strong\u003e\u003cbr\u003eIt is offered by a Disabled and Veteran Owned company located in Pecatonica, Illinois, USA.\u003c\/p\u003e","brand":"MJR Tumblers","offers":[{"title":"Default Title","offer_id":48204142444763,"sku":"B0BZWPDKW8","price":68.42,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/61AQ9A6OpdL._SL1080.jpg?v=1770276193","url":"https:\/\/gearmusthave.com\/products\/20lb-60-90-silicon-carbide-grit-for-rock-tumblers-coarse-shaping","provider":"GearMustHave","version":"1.0","type":"link"}