{"product_id":"crownforce-2-1-2-dry-core-drill-bit-for-concrete-brick-block-10-depth","title":"2-1\/2\" (65mm) Diamond Core Drill Bit for Mini Split Line Set Holes in Concrete, Brick \u0026 Block, Dry Cut, 10\" Depth, SDS-Plus \u0026 Tri-Flat Adapters - CrownForce","description":"\u003cp\u003e\u003cstrong\u003eDrill clean 2-1\/2\" holes through masonry walls. No water. No hammer mode. No guesswork.\u003c\/strong\u003e\u003cbr\u003eThe CrownForce CF-WC-65 dry core bit is built for one job: punching mini-split line-set holes and pipe pass-throughs straight through concrete, brick, and block. With 10 inches of working depth, it gets through 8\" block and most solid masonry walls in one pass.\u003c\/p\u003e\n\u003cdiv class=\"cf-acc\"\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003e\u003cspan\u003eFits the drill you already own\u003c\/span\u003e\u003cspan class=\"cf-arrow\"\u003e▼\u003c\/span\u003e\u003c\/summary\u003e\n\u003cdiv class=\"cf-body\"\u003e\n\u003cp\u003eTwo adapters included, both with a 5\/8\"-11 thread:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSDS-Plus adapter.\u003c\/strong\u003e Fits your rotary hammer. Use drill mode only, hammer OFF.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTri-flat shank adapter.\u003c\/strong\u003e Fits any standard 1\/2\" drill chuck. Use a drill with a side handle.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNo center bit. Drill a 1\/4\" pilot hole all the way through first to mark the exit point, then core halfway from each side for clean edges on both faces.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003e\u003cspan\u003eBuilt for real jobs\u003c\/span\u003e\u003cspan class=\"cf-arrow\"\u003e▼\u003c\/span\u003e\u003c\/summary\u003e\n\u003cdiv class=\"cf-body\"\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiamond segments.\u003c\/strong\u003e Made for dry cutting through concrete, brick, and block.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDry cutting.\u003c\/strong\u003e No water hookup needed, so you can drill from a ladder or indoors. Indoors, keep a shop vac at the hole to catch the dust.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRotation-only.\u003c\/strong\u003e Runs on any rotary hammer with a rotation-only (drill) mode. Do not use hammer mode.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003e\u003cspan\u003eSpecs\u003c\/span\u003e\u003cspan class=\"cf-arrow\"\u003e▼\u003c\/span\u003e\u003c\/summary\u003e\n\u003cdiv class=\"cf-body\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCF-WC-65\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDiameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2-1\/2\" (65mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWorking depth\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10\" (250mm+)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThread\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5\/8\"-11 (standard US)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAdapters included\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSDS-Plus, tri-flat shank\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUse\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDry, rotation only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterials\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eConcrete, brick, cinder block, masonry\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003e\u003cspan\u003eCommon jobs for this bit\u003c\/span\u003e\u003cspan class=\"cf-arrow\"\u003e▼\u003c\/span\u003e\u003c\/summary\u003e\n\u003cdiv class=\"cf-body\"\u003e\n\u003cp\u003eMini-split AC line-set holes. PVC and conduit pass-throughs: 2\" PVC (2.375\" outside) fits. Plumbing penetrations. If you need a clean 2-1\/2\" hole through a masonry wall, this is the bit.\u003c\/p\u003e\n\u003cp\u003eFits 9k–12k BTU mini-split line sets. Larger and multi-zone systems often call for a 3\" or bigger hole. Check the wall sleeve size in your unit's install manual before you drill.\u003c\/p\u003e\n\u003cp\u003eBrick over wood studs? Core the masonry, then switch to a hole saw for the wood. Not for rebar or heavily reinforced concrete.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003e\u003cspan\u003eBigger hole?\u003c\/span\u003e\u003cspan class=\"cf-arrow\"\u003e▼\u003c\/span\u003e\u003c\/summary\u003e\n\u003cdiv class=\"cf-body\"\u003e\n\u003cp\u003eSee the \u003ca href=\"\/products\/crownforce-4-1-4-dry-core-drill-bit-for-concrete-brick-block-4-duct-10-depth\"\u003eCrownForce 4-1\/4\" dry core bit\u003c\/a\u003e for dryer vents and 4\" duct.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cem\u003eCrownForce Industries. Factory-direct diamond tools. We own our factory, so every tool is built right and priced fair.\u003c\/em\u003e\u003c\/p\u003e","brand":"CrownForce","offers":[{"title":"Default Title","offer_id":44724986151005,"sku":"CF-WC-65","price":44.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0745\/4094\/1405\/files\/hf_20261031_201155_6e1cb2b2-e657-4673-b4c1-6df0af34d711.png?v=1793477844","url":"https:\/\/crownforcetools.com\/products\/crownforce-2-1-2-dry-core-drill-bit-for-concrete-brick-block-10-depth","provider":"CrownForce Tools","version":"1.0","type":"link"}