{"product_id":"sds-max-4ct-mx4™-1-1-8-x-17-x-21","title":"SDS Max 4CT MX4™ 1-1\/8\" X 17\" X 21\"","description":"\u003cp data-start=\"133\" data-end=\"428\"\u003eThe Milwaukee \u003cstrong data-start=\"147\" data-end=\"186\"\u003eSDS Max 4CT MX4™ 1-1\/8\" x 17\" x 21\"\u003c\/strong\u003e is a \u003cstrong data-start=\"192\" data-end=\"322\"\u003eheavy-duty, long-reach rotary hammer drill bit built for large-diameter drilling in concrete, reinforced concrete, and masonry\u003c\/strong\u003e. This is a step up into \u003cstrong data-start=\"347\" data-end=\"374\"\u003edeep drilling territory\u003c\/strong\u003e, where both durability and stability become critical.\u003c\/p\u003e\n\u003chr data-start=\"430\" data-end=\"433\"\u003e\n\u003ch2 data-section-id=\"19ph6tl\" data-start=\"435\" data-end=\"462\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"438\" data-end=\"462\"\u003ePerformance \u0026amp; Design\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-start=\"464\" data-end=\"1084\"\u003e\n\u003cli data-section-id=\"u8e9zc\" data-start=\"464\" data-end=\"613\"\u003e\n\u003cstrong data-start=\"466\" data-end=\"497\"\u003eSolid carbide 4-cutter head\u003c\/strong\u003e\u003cbr data-start=\"497\" data-end=\"500\"\u003eDelivers up to \u003cstrong data-start=\"517\" data-end=\"558\"\u003e5x longer life in concrete with rebar\u003c\/strong\u003e and maintains cutting efficiency in tough aggregate\u003c\/li\u003e\n\u003cli data-section-id=\"12ku5bc\" data-start=\"615\" data-end=\"719\"\u003e\n\u003cstrong data-start=\"617\" data-end=\"638\"\u003e4-cutter geometry\u003c\/strong\u003e\u003cbr data-start=\"638\" data-end=\"641\"\u003eReduces lock-up when hitting rebar, keeping drilling smooth and controlled\u003c\/li\u003e\n\u003cli data-section-id=\"uw1pmk\" data-start=\"721\" data-end=\"810\"\u003e\n\u003cstrong data-start=\"723\" data-end=\"739\"\u003eRebar guards\u003c\/strong\u003e\u003cbr data-start=\"739\" data-end=\"742\"\u003eProtect cutting edges from premature wear in reinforced concrete\u003c\/li\u003e\n\u003cli data-section-id=\"1d831ak\" data-start=\"812\" data-end=\"890\"\u003e\n\u003cstrong data-start=\"814\" data-end=\"831\"\u003eCentering tip\u003c\/strong\u003e\u003cbr data-start=\"831\" data-end=\"834\"\u003eImproves accuracy and prevents walking at hole start\u003c\/li\u003e\n\u003cli data-section-id=\"11rrwoh\" data-start=\"892\" data-end=\"989\"\u003e\n\u003cstrong data-start=\"894\" data-end=\"919\"\u003eVariable flute design\u003c\/strong\u003e\u003cbr data-start=\"919\" data-end=\"922\"\u003eRemoves dust faster, reducing heat and improving drilling speed\u003c\/li\u003e\n\u003cli data-section-id=\"187bwmk\" data-start=\"991\" data-end=\"1084\"\u003e\n\u003cstrong data-start=\"993\" data-end=\"1017\"\u003eWear mark indicators\u003c\/strong\u003e\u003cbr data-start=\"1017\" data-end=\"1020\"\u003eShow when the bit no longer meets ANSI spec for anchor holes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1086\" data-end=\"1089\"\u003e\n\u003ch2 data-section-id=\"1l5w62a\" data-start=\"1091\" data-end=\"1113\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1094\" data-end=\"1113\"\u003eSize \u0026amp; Capacity\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-start=\"1114\" data-end=\"1255\"\u003e\n\u003cli data-section-id=\"1c3n7hp\" data-start=\"1114\" data-end=\"1138\"\u003e\n\u003cstrong data-start=\"1116\" data-end=\"1129\"\u003eDiameter:\u003c\/strong\u003e 1-1\/8\"\u003c\/li\u003e\n\u003cli data-section-id=\"1hg3j5\" data-start=\"1139\" data-end=\"1172\"\u003e\n\u003cstrong data-start=\"1141\" data-end=\"1166\"\u003eUsable cutting depth:\u003c\/strong\u003e 17\"\u003c\/li\u003e\n\u003cli data-section-id=\"g2xlts\" data-start=\"1173\" data-end=\"1200\"\u003e\n\u003cstrong data-start=\"1175\" data-end=\"1194\"\u003eOverall length:\u003c\/strong\u003e 21\"\u003c\/li\u003e\n\u003cli data-section-id=\"1ff5mo0\" data-start=\"1201\" data-end=\"1255\"\u003e\n\u003cstrong data-start=\"1203\" data-end=\"1213\"\u003eShank:\u003c\/strong\u003e SDS Max (for large rotary hammers only)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1257\" data-end=\"1260\"\u003e\n\u003ch2 data-section-id=\"1gwu3tt\" data-start=\"1262\" data-end=\"1279\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1265\" data-end=\"1279\"\u003eIdeal For:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-start=\"1280\" data-end=\"1492\"\u003e\n\u003cli data-section-id=\"1qb7jbo\" data-start=\"1280\" data-end=\"1309\"\u003eDeep anchor hole drilling\u003c\/li\u003e\n\u003cli data-section-id=\"bpl42w\" data-start=\"1310\" data-end=\"1354\"\u003eThrough-wall and structural penetrations\u003c\/li\u003e\n\u003cli data-section-id=\"wkzm08\" data-start=\"1355\" data-end=\"1399\"\u003eReinforced concrete (rebar) applications\u003c\/li\u003e\n\u003cli data-section-id=\"lnnuo5\" data-start=\"1400\" data-end=\"1442\"\u003eCommercial and industrial construction\u003c\/li\u003e\n\u003cli data-section-id=\"9qr3hu\" data-start=\"1443\" data-end=\"1492\"\u003eMechanical, electrical, and plumbing installs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1494\" data-end=\"1497\"\u003e\n\u003ch2 data-section-id=\"yjkojz\" data-start=\"1499\" data-end=\"1521\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1502\" data-end=\"1521\"\u003eQuick takeaway:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-start=\"1522\" data-end=\"1705\"\u003eThis is a \u003cstrong data-start=\"1532\" data-end=\"1575\"\u003elong-reach, large-diameter concrete bit\u003c\/strong\u003e—built for \u003cstrong data-start=\"1586\" data-end=\"1661\"\u003edeep drilling in reinforced concrete without binding when hitting rebar\u003c\/strong\u003e, while maintaining accuracy and durability.\u003c\/p\u003e\n\u003chr data-start=\"1707\" data-end=\"1710\"\u003e\n\u003ch2 data-section-id=\"1a8hr4f\" data-start=\"1712\" data-end=\"1747\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1715\" data-end=\"1747\"\u003eWhere it fits in SDS lineup:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-start=\"1748\" data-end=\"1987\"\u003e\n\u003cli data-section-id=\"14ueeuy\" data-start=\"1748\" data-end=\"1785\"\u003eSDS+ → light\/medium duty drilling\u003c\/li\u003e\n\u003cli data-section-id=\"87beip\" data-start=\"1786\" data-end=\"1831\"\u003eShort SDS Max → shallow, controlled holes\u003c\/li\u003e\n\u003cli data-section-id=\"146qgr5\" data-start=\"1832\" data-end=\"1889\"\u003e\u003cstrong data-start=\"1834\" data-end=\"1887\"\u003eMX4 1-1\/8\" x 12\" x 17\" → mid-depth precision work\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-section-id=\"t7wyr\" data-start=\"1890\" data-end=\"1955\"\u003e\n\u003cstrong data-start=\"1892\" data-end=\"1929\"\u003eMX4 1-1\/8\" x 17\" x 21\" (this bit)\u003c\/strong\u003e → deep drilling + reach\u003c\/li\u003e\n\u003cli data-section-id=\"syqbxb\" data-start=\"1956\" data-end=\"1987\"\u003eCore bits → oversized holes\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Milwaukee","offers":[{"title":"Default Title","offer_id":52411725119777,"sku":"48-20-3966","price":80.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0943\/1905\/1041\/files\/48-20-3953-3_a21c0abd-ef0b-4f7b-bfde-eea524481b88.jpg?v=1776288755","url":"https:\/\/standardvmi.com\/products\/sds-max-4ct-mx4%e2%84%a2-1-1-8-x-17-x-21","provider":"Standard Plumbing Supply","version":"1.0","type":"link"}