{"product_id":"diamond-core-drill-bit-1-1-4-in-32mm-laser-welded-for-hard-stone","title":"Diamond Core Drill Bit 1-1\/4 in 32mm - Laser Welded for Hard Stone","description":"\u003cp\u003eIn this review the Diamond Core Drill Bit 1-1\/4 in (32mm) is evaluated for tradespeople and experienced DIYers who need a compact, fast core bit for hard stone and masonry. The bottom line: it is a competent, laser-welded 32mm core that makes clean holes in granite, marble and concrete when used correctly, and it delivers the best value when paired with an angle grinder and wet cutting. The review highlights ease of use, compatibility notes, and where durability may vary depending on material and technique.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLaser welded segment:\u003c\/strong\u003e provides a secure bond between the diamond segment and the core body so the bit stays intact during demanding cuts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e32mm diameter and 100mm length:\u003c\/strong\u003e gives a compact hole saw size that is easy to control for small plumbing and fixture holes while still reaching typical material depths.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5\/8 in-11 thread:\u003c\/strong\u003e fits standard angle grinder arbors so the bit can be used without complex adapters on many grinders.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDry or wet drilling:\u003c\/strong\u003e allows dry work for convenience but wet drilling is recommended to greatly extend segment life and reduce dust and heat.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesigned for hard stone:\u003c\/strong\u003e optimized to cut granite, marble, engineered quartz, concrete and brick, delivering clean cut quality on dense materials.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThis core bit is aimed at professional stone fabricators, tile installers and handy homeowners who need a reliable 32mm hole saw for sinks, taps, anchor holes and through-holes in stone and masonry. It suits anyone who uses an angle grinder regularly and can run wet cutting or use a proper adapter.\u003c\/p\u003e\u003cp\u003eThose who should look elsewhere include beginners who only own a corded drill without the correct adapter or users who need larger diameters; this bit requires confirming thread and shank compatibility before purchase to avoid returns.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eGood cut quality on granite and engineered stone, producing clean, accurate holes.\u003c\/li\u003e\n\u003cli\u003eEasy to operate on an angle grinder and fast when used with steady feed and cooling water.\u003c\/li\u003e\n\u003cli\u003eSolid build and laser welded joint reduce wobble and improve attachment capability.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eDurability is mixed depending on material and technique; some buyers report short life when used dry or on very abrasive surfaces.\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiameter\u003c\/td\u003e\n\u003ctd\u003e32mm (1-1\/4 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal length\u003c\/td\u003e\n\u003ctd\u003e100mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread\u003c\/td\u003e\n\u003ctd\u003e5\/8 in-11\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible tool\u003c\/td\u003e\n\u003ctd\u003eAngle grinder (adapter needed for some drills)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial focus\u003c\/td\u003e\n\u003ctd\u003eGranite, marble, engineered stone, concrete, brick\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDrilling mode\u003c\/td\u003e\n\u003ctd\u003eDry or wet (wet prolongs segment life)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThe 32mm laser welded core bit is a practical, value-minded choice for anyone cutting holes in hard stone and masonry, especially when used with an angle grinder and wet cooling. It offers strong cut quality and easy handling for common installation tasks, though buyers should confirm thread compatibility and prefer wet use to maximize life.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWill this fit my grinder?\u003c\/strong\u003e\u003cbr\u003eIt fits angle grinders with a 5\/8 in-11 arbor; adapters are available for other shank types.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I use it dry?\u003c\/strong\u003e\u003cbr\u003eYes, but wet drilling is recommended to greatly extend segment life and reduce heat and dust.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs it suitable for engineered quartz?\u003c\/strong\u003e\u003cbr\u003eYes, customers report good functionality and cut quality on engineered quartz when used correctly.\u003c\/p\u003e","brand":"SHDIATOOL","offers":[{"title":"Default Title","offer_id":48248545214683,"sku":"B076LKKY62","price":35.41,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/616C-4VEHIL._AC_SL1100.jpg?v=1770984929","url":"https:\/\/gearmusthave.com\/products\/diamond-core-drill-bit-1-1-4-in-32mm-laser-welded-for-hard-stone","provider":"GearMustHave","version":"1.0","type":"link"}