{"product_id":"4-5in-dry-diamond-core-drill-bit-for-tile-precise-115mm-holes","title":"4.5in Dry Diamond Core Drill Bit for Tile - Precise 115mm Holes","description":"\u003cp\u003eIn this review the author tests the 4.5in Dry Diamond Hole Saw and finds it best suited for tradespeople and knowledgeable DIYers who need precise 4.5in (115mm) holes in hard surfaces. The single biggest reason to buy is its ability to cut clean, accurately sized openings in ceramic, porcelain, marble and granite when used with a compatible angle grinder or wet polisher; that real-world cutting performance is why this drill bit earned a solid recommendation here. The reviewer notes it works without requiring heavy pressure and that cooling and proper technique are important for long life.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e115mm Diameter:\u003c\/strong\u003e Cuts a true 4.5in hole useful for faucets, drains and duct openings with consistent sizing for retrofit work.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5\/8-11 Thread Fit:\u003c\/strong\u003e Threads directly onto most angle grinders and wet polishers so it is simple to install and swap between tools.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiamond Tipped Edge:\u003c\/strong\u003e High-technology diamond grit delivers sharp cutting action on porcelain, ceramic and natural stone while resisting rapid wear.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDry Cutting Design:\u003c\/strong\u003e Intended for dry use with a recommended technique and intermittent cooling, which avoids the need for a wet rig in many applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDebris Slot:\u003c\/strong\u003e The slot in the side helps clear slurry and debris so holes stay accurate and the bit keeps cutting rather than packing up.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2in Max Cutting Depth:\u003c\/strong\u003e Reaches through typical tile and thin stone countertops for common plumbing and electrical openings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis bit is aimed at installers, plumbers, and experienced DIYers who already own an angle grinder or polisher and need a reliable 4.5in hole saw for tile, marble, granite and similar materials. It is especially useful when installing faucets, shower fittings, drains or routing small ducts where a neat round penetration is required.\u003c\/p\u003e\n\u003cp\u003eIt is not the best choice for beginners who have never used a high-speed grinder on tile without a guide, or for tasks that demand wet continuous cutting rigs for large stone slabs. Those users should consider guided drilling setups or wet core systems better suited to extensive stone work.\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\u003ePerforms well on porcelain and granite when used with the correct technique and cooling, producing accurate 4.5in holes.\u003c\/li\u003e\n\u003cli\u003eAttaches directly to common angle grinders via the 5\/8-11 female thread, making tool changes straightforward.\u003c\/li\u003e\n\u003cli\u003eDiamond-tipped edge and side slot speed debris removal and extend usable life compared with plain metal bits.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDry cutting generates heat; the bit needs intermittent cooling or dips in water to avoid overheating and to prolong life.\u003c\/li\u003e\n\u003cli\u003ePerformance varies by material hardness and operator technique, so cutting speed can feel slow on very hard granite to some users.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiameter\u003c\/td\u003e\n\u003ctd\u003e4.5 in (115mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnection\u003c\/td\u003e\n\u003ctd\u003e5\/8-11 female thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax cutting depth\u003c\/td\u003e\n\u003ctd\u003e2 in (approx)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiamond height\u003c\/td\u003e\n\u003ctd\u003e0.59 in (15mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal height\u003c\/td\u003e\n\u003ctd\u003e2.4 in (61mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible materials\u003c\/td\u003e\n\u003ctd\u003eCeramic, porcelain, marble, granite, natural stone, glass tiles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe 4.5in Dry Diamond Core Drill Bit is a practical, value-minded choice for professionals and experienced DIYers who need neat 115mm holes in tile and stone without a wet rig. It pairs easily with angle grinders and, when used with the recommended 45 degree start and intermittent cooling, cuts accurately and lasts well enough to justify the purchase for occasional to regular jobs.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWill this fit my angle grinder?\u003c\/strong\u003e\u003cbr\u003eYes, it uses a standard 5\/8-11 female thread designed to attach to most angle grinders and wet polishers that accept threaded accessories.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan it cut through thick granite countertops?\u003c\/strong\u003e\u003cbr\u003eIt can penetrate stone up to its maximum cutting depth of about 2in, but very thick or extremely hard granite may cut slowly and benefit from wet core tools or staged cuts and cooling.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo I need water while cutting?\u003c\/strong\u003e\u003cbr\u003eThe bit is designed for dry use but will get hot; intermittent dips in water or stopping to cool the bit is recommended to prevent overheating and extend diamond life.\u003c\/p\u003e","brand":"DKIBBITH","offers":[{"title":"Default Title","offer_id":48245337129179,"sku":"B0CF5H63WS","price":47.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71zN-R2GGKL._SL1500.jpg?v=1771000743","url":"https:\/\/gearmusthave.com\/products\/4-5in-dry-diamond-core-drill-bit-for-tile-precise-115mm-holes","provider":"GearMustHave","version":"1.0","type":"link"}