{"product_id":"diamond-core-drill-bit-1-1-2-in-laser-welded-hole-saw-fast-clean","title":"Diamond Core Drill Bit 1-1\/2 in Laser Welded Hole Saw - Fast, Clean","description":"\u003cp\u003eOur review of this 1-1\/2 in diamond core drill bit finds it best suited for tradespeople and DIYers who need a compact bit that cuts clean holes through hard stone. The single biggest reason to buy is its laser welded construction and vacuum brazing layer, which together produce stable drilling and help protect the steel core during use. Tested on masonry and stone, it handles short, precise cuts well and performs noticeably better when used with water for cooling.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize and fit:\u003c\/strong\u003e The 1-1\/2 in diameter and 5\/8-11 thread make it easy to attach to common angle grinder adapters for compact hole drilling in stone and block.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting depth:\u003c\/strong\u003e Ten millimeter diamond height and an 80 mm working length provide a usable cutting segment for most countertop and masonry passes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLaser welded segments:\u003c\/strong\u003e Laser welded technology secures the diamond segments to reduce the chance of segment loss and keeps performance consistent during a run of holes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtective coating:\u003c\/strong\u003e The vacuum brazing protective layer on the steel core helps achieve cleaner edges and resists premature steel wear during dry or wet drilling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile application:\u003c\/strong\u003e Designed for granite, marble, reinforced concrete and brick, it is suitable for tasks from small countertop holes to masonry penetrations when used properly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDry or wet use:\u003c\/strong\u003e The bit can be used dry for convenience, but adding water prolongs life and reduces heat on thick stone.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThis diamond core bit is aimed at professionals and experienced DIYers who need a compact 38 mm hole saw for stone, tile, or block work. It fits common angle grinder setups and is handy for cutting through granite and marble for sinks, tap holes, or light plumbing penetrations.\u003c\/p\u003e\u003cp\u003eIt is less appropriate for contractors who must cut very large volumes of deep holes daily or for users who expect extremely long life under continuous heavy load; in those situations a larger industrial core system or longer duty bits would be a better choice.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eLaser welded segments and vacuum brazing deliver stable cutting and help prevent segment loss.\u003c\/li\u003e\n\u003cli\u003eFast and smooth drilling with generally clean cut edges when used correctly.\u003c\/li\u003e\n\u003cli\u003eCompact 1-1\/2 in size with 5\/8-11 thread fits common power tools for flexible use.\u003c\/li\u003e\n\u003cli\u003eWorks in dry or wet conditions, and cooling with water noticeably extends life.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMixed customer feedback on durability suggests performance can vary by material and technique.\u003c\/li\u003e\n\u003cli\u003eNot intended for high-volume deep coring jobs where industrial bits perform better.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiameter\u003c\/td\u003e\n\u003ctd\u003e1-1\/2 in (38mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiamond height\u003c\/td\u003e\n\u003ctd\u003e10 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal length\u003c\/td\u003e\n\u003ctd\u003e100 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWorking length\u003c\/td\u003e\n\u003ctd\u003e80 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiamond grit\u003c\/td\u003e\n\u003ctd\u003e#25\/35\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread\u003c\/td\u003e\n\u003ctd\u003e5\/8-11\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUse\u003c\/td\u003e\n\u003ctd\u003eDry or wet drilling\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThis 1-1\/2 in diamond core drill bit is a sensible value for stone and masonry tasks where a compact, reliable hole saw is required. Its laser welded segments and protective brazing give clean cuts for countertop and block work, and users who cool the bit with water will see the best life. Buy it if you need a small, practical core bit for occasional to moderate stone work; look elsewhere for heavy industrial coring.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eCan this bit be used wet?\u003c\/strong\u003e\u003cbr\u003eYes, it supports wet drilling and using water will reduce heat and extend the bit life.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat tool does it attach to?\u003c\/strong\u003e\u003cbr\u003eThe bit uses a 5\/8-11 thread and is commonly fitted to angle grinder adaptors or compatible drill arbors.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill it cut reinforced concrete?\u003c\/strong\u003e\u003cbr\u003eYes, it is designed to cut granite, marble, reinforced concrete, brick and similar hard materials, though heavy rebar may affect durability.\u003c\/p\u003e","brand":"BRSCHNITT","offers":[{"title":"Default Title","offer_id":48676656283867,"sku":"B09KRD3QGY","price":37.04,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71MWABVlFlL._SL1500.jpg?v=1778627667","url":"https:\/\/gearmusthave.com\/products\/diamond-core-drill-bit-1-1-2-in-laser-welded-hole-saw-fast-clean","provider":"GearMustHave","version":"1.0","type":"link"}