{"product_id":"diamond-metal-grinding-shoes-smooth-concrete-prep-30-40-grit-soft-bond-lavina-onfloor-grinders-pack-of-9","title":"Concrete Floor Grinding Disc 30\/40 Grit Soft Bond - Pack of 9","description":"\u003cp\u003eIn this review of the Concrete Floor Grinding Disc pack, the bottom line is simple: these are budget-conscious replacement \u003cstrong\u003ediamond metal grinding shoes\u003c\/strong\u003e aimed at contractors and concrete preparers who need durable segments for heavy surface work. The pack of nine single-round segments is built for use with Lavina and similar onfloor grinders, and the 30\/40 grit, soft bond configuration is optimized for preparing and profiling harder concrete before polishing or coating. For teams that run frequent prep cycles, the discs balance cutting aggression and life at a practical price point.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e30\/40 Grit:\u003c\/strong\u003e Delivers aggressive stock removal to remove laitance, glue residues, and minor toppings efficiently on harder concrete surfaces.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSoft Bond:\u003c\/strong\u003e The softer bond helps expose diamonds faster on hard concrete so the segment maintains cutting performance instead of glazing over.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for Lavina and onfloor grinders, the round single segments fit common holders used in concrete preparation workflows.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle Seg Design:\u003c\/strong\u003e The 25 x 12.5 mm single segment footprint concentrates force for consistent grinding and easier dressing on rough floors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePack of 9:\u003c\/strong\u003e Supplied as a nine-piece set so operators can replace worn segments during a job without delay, reducing downtime.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThese grinding discs suit professional floor contractors, prep crews, and maintenance teams that work on hard concrete and need a product focused on aggressive material removal prior to polishing or coating. The 30\/40 grit and soft bond pairing is aimed at jobs where exposing aggregate, removing adhesives, or evening rough patches is the primary goal.\u003c\/p\u003e\n\u003cp\u003eLess suitable are users looking for final polishing discs or very fine finishing grits; if the task is fine polishing of terrazzo or a gloss finish, a finer grit or polishing puck would be more appropriate.\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\u003eGood stock removal on hard concrete thanks to the 30\/40 grit and aggressive segment geometry.\u003c\/li\u003e\n\u003cli\u003eSoft bond helps sustain cutting on hard slabs, reducing glazing compared with harder bonds.\u003c\/li\u003e\n\u003cli\u003ePack of nine provides ready replacements to keep a job moving without repeated reordering.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNot intended for fine polishing or finishing work; users will need finer grits for final surface sheen.\u003c\/li\u003e\n\u003cli\u003eFitment is squarely for Lavina and similar onfloor grinders, so confirm holder compatibility before purchasing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eComeFloor (product listing)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrit\u003c\/td\u003e\n\u003ctd\u003e30\/40\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBond\u003c\/td\u003e\n\u003ctd\u003eSoft bond for hard concrete\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSegment size\u003c\/td\u003e\n\u003ctd\u003e25 x 12.5 mm (0.98 x 0.49 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eLavina, onfloor grinders\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePack quantity\u003c\/td\u003e\n\u003ctd\u003e9 pieces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eFor contractors who need reliable, aggressive concrete preparation on hard slabs, this nine-pack of 30\/40 grit \u003cstrong\u003ediamond grinding shoes\u003c\/strong\u003e is a practical value. They are not a finishing product, but as replacement segments for Lavina-style onfloor grinders they deliver predictable cutting and reduced downtime when multiple spares are needed on site.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eAre these discs compatible with my Lavina grinder?\u003c\/strong\u003e\u003cbr\u003eThey are designed for Lavina and similar onfloor grinders; verify your holder uses single round segments of the same dimensions before purchasing.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat surface results should I expect?\u003c\/strong\u003e\u003cbr\u003eExpect aggressive stock removal and surface profiling on hard concrete; these are not intended to produce a polished finish.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow many pieces are included and how are they used?\u003c\/strong\u003e\u003cbr\u003eThe package contains nine single round segments, intended as replacement grinding shoes for continued concrete preparation during a job.\u003c\/p\u003e","brand":"ComeFloor","offers":[{"title":"Default Title","offer_id":46781683564763,"sku":"B0DB247P4J","price":169.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/51rGpBdxkOL._SL1200.jpg?v=1747532170","url":"https:\/\/gearmusthave.com\/products\/diamond-metal-grinding-shoes-smooth-concrete-prep-30-40-grit-soft-bond-lavina-onfloor-grinders-pack-of-9","provider":"GearMustHave","version":"1.0","type":"link"}