{"product_id":"byrne-cbn-gear-grinder-bn-gg-cbn52","title":"Byrne CBN Gear Grinder (BN-GG-CBN52)","description":"\u003csection data-aplus\u003e\n\u003cdetails id=\"product-features\" class=\"acc\" open\u003e\n\u003csummary\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\u003cdiv class=\"features\"\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cdiv class=\"card-inside\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/sander.svg\" alt=\"sander\" class=\"aplusicon\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003eCBN Abrasive Core\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003eCubic boron nitride is one of the hardest abrasives made. It cuts steel teeth fast and wears far slower than a standard grinding wheel.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cdiv class=\"card-inside\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/drill.svg\" alt=\"drill\" class=\"aplusicon\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003eRuns Off Your Drill\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003eChuck the shaft in a drill at medium speed and the grinder does the work. No bench grinder or dedicated sharpening station needed.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cdiv class=\"card-inside\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/capacity.svg\" alt=\"capacity\" class=\"aplusicon\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003eBlades Up to 52mm\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003eThe slot accepts oscillating multi-tool blades up to 52mm wide, so it handles the common plunge and wood blade sizes.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails id=\"product-overview\" class=\"acc\"\u003e\n\u003csummary\u003e\u003ch2\u003eOverview\u003c\/h2\u003e\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\" data-product-summary\u003e\n\u003cp\u003eThe Byrne CBN Gear Grinder (model BN-GG-CBN52) is a blade sharpener for oscillating multi-tool blades. This is a drill-driven sharpening tool designed for restoring the teeth on worn plunge-cut and wood blades so they cut cleanly again instead of heading to the scrap bin.\u003c\/p\u003e\n\u003cp\u003eInside the aluminum alloy housing is a cubic boron nitride (CBN) abrasive. CBN is second only to diamond in hardness and is the go-to abrasive for sharpening hardened steel. It holds its shape and keeps cutting over hundreds of passes, which is why it delivers consistent results where a cheap stone glazes over and loses its edge.\u003c\/p\u003e\n\u003cp\u003eOperation is simple. Clamp the drive shaft in a drill chuck, run the drill at medium speed, and feed the blade teeth into the slot. The grinder restores a serrated, even edge across the full width of the blade. Byrne rates it for blades up to 52mm wide, and it sharpens at any angle you present the blade, so you can match the original tooth geometry.\u003c\/p\u003e\n\u003cp\u003eThe housing is compact and stable, which keeps the blade square to the abrasive and makes the results repeatable blade after blade. At 0.6 kg (about 1.3 lb) packaged, it lives in a drawer or a systainer without taking up real estate.\u003c\/p\u003e\n\u003cp\u003eWho should buy this: remodelers, trim carpenters, flooring installers, and anyone burning through oscillating blades for undercutting jambs, plunge cuts in subfloor, or cutting out drywall. If you toss a dull blade every few days, the CBN Gear Grinder pays for itself quickly.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails id=\"product-benefits\" class=\"acc\"\u003e\n\u003csummary\u003e\u003ch2\u003eBring Dull Blades Back to Work\u003c\/h2\u003e\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"img\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/20260110_114001933_878569.jpg\" alt=\"Oscillating multi-tool blade sharpened with the Byrne CBN Gear Grinder making clean plunge cuts in a wood board\" class=\"tnblock-img\"\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"copy\"\u003e\n\u003cp\u003eA resharpened blade plunges straight and cuts clean again instead of burning and wandering through the wood.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRestores a serrated, even tooth line\u003c\/li\u003e\n\u003cli\u003eExtends the life of plunge-cut and wood blades\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails id=\"product-benefits\" class=\"acc flip\"\u003e\n\u003csummary\u003e\u003ch2\u003eSized for Multi-Tool Blades\u003c\/h2\u003e\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"img\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/20260110_113957095_708475.jpg\" alt=\"Oscillating multi-tool blade inserted into the slot of the Byrne CBN Gear Grinder aluminum housing for sharpening\" class=\"tnblock-img\"\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"copy\"\u003e\n\u003cp\u003eThe slot guides the blade squarely onto the CBN abrasive so every tooth gets the same treatment.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAccepts blades up to 52mm wide\u003c\/li\u003e\n\u003cli\u003eSharpen at whatever angle the tooth geometry needs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails id=\"product-whats-included\" class=\"acc\" open\u003e\n\u003csummary\u003e\u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\u003cdiv class=\"tnincluded-wrapper\"\u003e\n\u003cul\u003e\u003cli\u003e(1) CBN Gear Grinder\u003c\/li\u003e\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"included-note\"\u003e\n\u003cp\u003eDrill not included.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails id=\"product-key-specifications\" class=\"acc\" open\u003e\n\u003csummary\u003e\u003ch2\u003eKey Specifications\u003c\/h2\u003e\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\u003ctable class=\"aplusspecs\"\u003e\n\u003ctr\u003e\n\u003cth\u003eAbrasive\u003c\/th\u003e\n\u003ctd\u003eCubic Boron Nitride (CBN)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHousing Material\u003c\/th\u003e\n\u003ctd\u003eAluminum alloy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaximum Blade Width\u003c\/th\u003e\n\u003ctd\u003e52 mm (2-1\/16 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDrive\u003c\/th\u003e\n\u003ctd\u003eDrill chuck, medium speed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBlade Type\u003c\/th\u003e\n\u003ctd\u003eOscillating multi-tool blades\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePackage Weight\u003c\/th\u003e\n\u003ctd\u003e1.3 lb (0.6 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails id=\"product-applications-uses\" class=\"acc\"\u003e\n\u003csummary\u003e\u003ch2\u003eBuilt For\u003c\/h2\u003e\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\u003cdiv class=\"tags\"\u003e\n\u003cspan class=\"tag\"\u003eRemodeling\u003c\/span\u003e\u003cspan class=\"tag\"\u003eCarpentry\u003c\/span\u003e\u003cspan class=\"tag\"\u003eFlooring Installation\u003c\/span\u003e\u003cspan class=\"tag\"\u003eDrywall\u003c\/span\u003e\u003cspan class=\"tag\"\u003eWoodworking\u003c\/span\u003e\u003cspan class=\"tag\"\u003eDIY \/ Hobbyist\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails id=\"product-pro-tips\" class=\"acc\"\u003e\n\u003csummary\u003e\u003ch2\u003ePro Tip\u003c\/h2\u003e\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\u003cdiv class=\"tip-row\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/pro-tip.svg\" alt=\"\" class=\"icon-lg\"\u003e\u003cp class=\"tip-text\"\u003eRun the drill at medium speed, not full throttle. Let the CBN cut, keep the blade moving across the slot, and stop to check the teeth often. Too much speed and pressure heats the tooth tips and softens the steel.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails id=\"product-tool-nut-take\" class=\"acc\"\u003e\n\u003csummary\u003e\u003ch2\u003eTool Nut's Take\u003c\/h2\u003e\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\u003cdiv class=\"eyebrow\"\u003eTool Nut's Take\u003c\/div\u003e\n\u003ch3\u003eStop Throwing Away Oscillating Blades\u003c\/h3\u003e\n\u003cp\u003eThe Byrne CBN Gear Grinder turns a dull multi-tool blade back into a working blade using the drill already in your bag.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWho it's for:\u003c\/strong\u003e Remodelers and trim carpenters who chew through oscillating blades on a weekly basis.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhy it stands out:\u003c\/strong\u003e A CBN abrasive that outlasts ordinary stones, plus a slot that keeps the blade square for repeatable results.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorth knowing:\u003c\/strong\u003e It sharpens steel teeth. Carbide-tipped or diamond grit blades are a different animal and are not what this tool is built for.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails id=\"product-faqs\" class=\"acc\"\u003e\n\u003csummary\u003e\u003ch2\u003eCommon Questions\u003c\/h2\u003e\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat powers the CBN Gear Grinder?\u003c\/strong\u003e A standard drill. Chuck the drive shaft and run it at medium speed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHow wide a blade will it take?\u003c\/strong\u003e Blades up to 52mm wide.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat is CBN?\u003c\/strong\u003e Cubic boron nitride, a super-hard abrasive used for sharpening hardened steel. It wears much slower than conventional grinding media.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/section\u003e","brand":"Byrne Tools","offers":[{"title":"Default Title","offer_id":53534789402918,"sku":"BN-GG-CBN52","price":84.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/20260110_114001933_878569.jpg?v=1785268950","url":"https:\/\/www.toolnut.com\/products\/byrne-cbn-gear-grinder-bn-gg-cbn52","provider":"Tool Nut","version":"1.0","type":"link"}