{"product_id":"chicago-latrobe-49023-screw-machine-drill-bit-11mm-cobalt","title":"Chicago-latrobe 49023 Screw Machine Drill Bit 11mm Cobalt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe CHICAGO-LATROBE 49023 is a cobalt screw machine length drill bit engineered for heavy-duty metal drilling applications. Built from M42 cobalt high-speed steel, it delivers the heat resistance needed when drilling tough ferrous materials at sustained feed rates. The 11.00 mm diameter bit features a 135-degree split point that self-centers on contact, reducing the need for a center punch and minimizing walking on hard surfaces. With an overall length of 3.878 inches and a flute length of 1.918 inches, the stub-length body provides rigidity that reduces deflection in production drilling environments. A straw oxide finish adds additional wear resistance. This bit is sold individually.\u003c\/p\u003e\u003cp\u003eThe 49023 is intended for drilling cast iron and steel in fabrication, maintenance, and production machining settings. The screw machine length format makes it well suited for drill press, CNC, and hand-drill use where rigidity matters more than reach. Its right-hand cutting direction and regular spiral flute geometry are standard for metal removal in both light manufacturing and heavy industrial applications. Machinists, maintenance technicians, and metalworking fabricators are the primary users.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eM42 cobalt construction for heat resistance and long tool life in ferrous materials\u003c\/li\u003e\n\u003cli\u003e135-degree split point reduces thrust and eliminates center-punching on most setups\u003c\/li\u003e\n\u003cli\u003eScrew machine (stub) length body for maximum rigidity and reduced deflection\u003c\/li\u003e\n\u003cli\u003eStraw oxide finish provides additional surface hardness and lubricity\u003c\/li\u003e\n\u003cli\u003eRight-hand cut with regular spiral flute geometry for efficient chip evacuation\u003c\/li\u003e\n\u003cli\u003eConforms to DIN 1897 specification for consistent dimensional accuracy\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for drilling cast iron and steel workpieces; compatible with standard drill chucks and CNC spindles accepting an 11.00 mm straight cylindrical shank.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eSecure the bit firmly in a drill chuck or collet and verify runout before use to prevent premature wear. Use appropriate cutting fluid or coolant when drilling steel at higher feed rates to manage heat buildup, as coolant-through is not available on this bit. Ensure the workpiece is clamped securely before beginning a cut. Follow applicable shop safety practices and machine manufacturer guidelines for speed and feed settings.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 11.00 mm (0.4331 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 98.50 mm (3.878 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 48.72 mm (1.918 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 11.00 mm (0.4331 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 49.78 mm (1.960 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 1.516 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 135 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Split Point\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: M42 Cobalt High-Speed Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Regular Spiral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight Cylindrical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Straw Oxide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Length Type\u003c\/strong\u003e: Screw Machine\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Cast Iron, Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter Tolerance\u003c\/strong\u003e: +0.0000 to -0.0010 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecification\u003c\/strong\u003e: DIN 1897\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 559\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.11 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: CHICAGO-LATROBE\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 49023\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CHICAGO-LATROBE","offers":[{"title":"Default Title","offer_id":51732758528306,"sku":"49023","price":28.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/f5d92ffa42f8cc5bf33a2250f5ce0e7b_b7c93e8e-54fb-40c6-bafb-198fa8735ead.jpg?v=1788746386","url":"https:\/\/voomisupply.com\/products\/chicago-latrobe-49023-screw-machine-drill-bit-11mm-cobalt","provider":"Voomi Supply","version":"1.0","type":"link"}