{"product_id":"milwaukee-48-20-3966-1-1-8in-x-16in-x-21in-mx4-4-cutter-sds-max-rotary-hammer-drill-bit","title":"Milwaukee 48-20-3966 1-1\/8in x 16in x 21in MX4 4-Cutter SDS-MAX Rotary Hammer Drill Bit","description":"\u003ch3\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe Milwaukee MX4 4-Cutter SDS-MAX Rotary Hammer Drill Bit (1-1\/8 in. x 16 in. x 21 in.) is built for heavy-duty drilling in concrete, rebar, and masonry. Its solid carbide head is engineered for extended durability, while the sharp centering tip delivers precise, accurate starts. The advanced 4-cutter design helps prevent binding in rebar, reducing downtime on the job. Optimized flutes efficiently clear dust and manage heat, allowing for smoother drilling and consistent performance in demanding applications.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli class=\"is-root\"\u003eIdeal for concrete with rebar and masonry applications\u003c\/li\u003e\n\u003cli class=\"is-root\"\u003eSolid head carbide delivers up to 5x longer life in concrete with rebar\u003c\/li\u003e\n\u003cli class=\"is-root\"\u003eRebar guards for maximum durability in hard aggregate and rebar\u003c\/li\u003e\n\u003cli class=\"is-root\"\u003eSharp centering tip for exact spot drilling in concrete and metal decking\u003c\/li\u003e\n\u003cli class=\"is-root\"\u003e4-Cutter design prevents lock-up in rebar, reducing downtime\u003c\/li\u003e\n\u003cli class=\"is-root\"\u003eOptimized flutes remove dust faster, reducing heat and delivering up to 15% more holes per battery charge\u003c\/li\u003e\n\u003cli class=\"is-root\"\u003eWear mark indicator to show the end of life and when bit no longer meets the ANSI requirement\u003c\/li\u003e\n\u003cli class=\"is-root\"\u003eFits all SDS-Max rotary hammers\u003c\/li\u003e\n\u003cli class=\"is-root\"\u003eMeets ANSI B212.15 to fit common anchors\u003c\/li\u003e\n\u003cli class=\"is-root\"\u003eDiameter: 1-1\/8 in\u003c\/li\u003e\n\u003cli class=\"is-root\"\u003eUseable length: 16 in\u003c\/li\u003e\n\u003cli class=\"is-root\"\u003eOverall length: 21 in\u003c\/li\u003e\n\u003cli class=\"is-root\"\u003eShank type: SDS-MAX\u003c\/li\u003e\n\u003cli class=\"is-root\"\u003eGerman Made\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cdiv class=\"flex flex-col text-sm pb-25\"\u003e\n\u003carticle data-turn=\"assistant\" data-scroll-anchor=\"true\" data-testid=\"conversation-turn-314\" data-turn-id=\"request-696fff4b-d990-8324-a0e0-ec1a2e9511ab-52\" dir=\"auto\" class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" tabindex=\"-1\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:--spacing(4)] @w-sm\/main:[--thread-content-margin:--spacing(6)] @w-lg\/main:[--thread-content-margin:--spacing(16)] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\" tabindex=\"-1\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col grow\"\u003e\n\u003cdiv data-message-model-slug=\"gpt-5-2\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal [.text-message+\u0026amp;]:mt-1\" dir=\"auto\" data-message-id=\"7bf1cc99-00b1-4102-b9d1-325fe7542dab\" data-message-author-role=\"assistant\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden first:pt-[1px]\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert w-full wrap-break-word light markdown-new-styling\"\u003e\n\u003cul data-is-only-node=\"\" data-is-last-node=\"\" data-end=\"117\" data-start=\"23\"\u003e\n\u003cli data-is-last-node=\"\" data-end=\"117\" data-start=\"23\"\u003e\n\u003cp data-is-last-node=\"\" data-end=\"117\" data-start=\"25\"\u003e1 × Milwaukee MX4 4-Cutter SDS-MAX Rotary Hammer Drill Bit (1-1\/8 in. x 16 in. x 21 in.)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eWarranty Information:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eYou can quickly review Milwaukee’s official warranty and service terms by visiting the Milwaukee General Warranty Information page.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eSpecification:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003ctable width=\"100%\" cellspacing=\"0\" class=\"product-dimensions-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eSDS-MAX Rotary Hammer Drill Bit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eMilwaukee MX4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiameter\u003c\/td\u003e\n\u003ctd\u003e1-1\/8 Inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUsable Length\u003c\/td\u003e\n\u003ctd\u003e16 Inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e21 Inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHead Type\u003c\/td\u003e\n\u003ctd\u003eSolid Carbide Head\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCutter Design\u003c\/td\u003e\n\u003ctd\u003e4-Cutter Design to Prevent Lock-Up\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTip Design\u003c\/td\u003e\n\u003ctd\u003eSharp Centering Tip for Accurate Starts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlute Design\u003c\/td\u003e\n\u003ctd\u003eOptimized Flutes for Faster Dust Removal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eConcrete, Rebar, and Masonry\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShank Type\u003c\/td\u003e\n\u003ctd\u003eSDS-MAX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cstyle\u003e\n  .product-dimensions-table {\n    width: 100%;\n    border-collapse: collapse;\n    font-family: Arial, sans-serif;\n    margin: 20px 0;\n    border: 1px solid #ddd;\n  }\n\n  .product-dimensions-table th,\n  .product-dimensions-table td {\n    border: 1px solid #ddd;\n    padding: 12px 15px;\n    text-align: left;\n  }\n\n  .product-dimensions-table thead {\n    background-color: #f7f7f7;\n  }\n\n  .product-dimensions-table th {\n    font-size: 16px;\n    font-weight: bold;\n    color: #222;\n  }\n\n  .product-dimensions-table td {\n    font-size: 14px;\n    color: #555;\n  }\n\n  .product-dimensions-table tr:nth-child(even) {\n    background-color: #fafafa;\n  }\n\n  .product-dimensions-table tr:hover {\n    background-color: #f1f1f1;\n  }\n\u003c\/style\u003e","brand":"Milwaukee","offers":[{"title":"Default Title","offer_id":52670579933500,"sku":"48-20-3966","price":99.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0864\/7734\/0988\/files\/MF48-20-3946_main_thumb__57212.jpg?v=1769114417","url":"https:\/\/leotools.ca\/products\/milwaukee-48-20-3966-1-1-8in-x-16in-x-21in-mx4-4-cutter-sds-max-rotary-hammer-drill-bit","provider":"Leo Tools Ltd.","version":"1.0","type":"link"}