{"product_id":"chicago-latrobe-50903-screw-machine-drill-bit-0-076-in","title":"Chicago-latrobe 50903 Screw Machine Drill Bit 0.076 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe CHICAGO-LATROBE 50903 is a cobalt screw machine length drill bit designed for high-performance drilling in ferrous metals and hard materials. Sized at 0.076 inches in diameter (Wire Size 48), it features a 135-degree split point that reduces walking and minimizes the need for a center punch. The M42 cobalt grade construction provides heat resistance for sustained cutting in tough materials such as cast iron and steel. At 1-11\/16 inches overall length and an 11\/16-inch flute length, this stub-length geometry delivers added rigidity for accurate, chatter-free holes in production and maintenance environments. Licensed trades and metalworking shops rely on this bit for close-tolerance drilling where standard HSS tooling falls short.\u003c\/p\u003e\n\u003cp\u003eThis bit is built for drilling cast iron and steel in screw machine operations, CNC setups, drill presses, and hand drilling applications that demand a short, stiff bit profile. The Series 559 heavy-duty classification makes it suitable for production runs and repetitive operations where tool life and dimensional consistency are priorities. Its straight-cylindrical shank fits standard drill chucks without modification, and its web-thinned, parallel web design promotes efficient chip evacuation through the two-flute spiral configuration.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eM42 cobalt construction for extended tool life in cast iron and steel\u003c\/li\u003e\n  \u003cli\u003e135-degree split point reduces drill walk and cutting force\u003c\/li\u003e\n  \u003cli\u003eWeb-thinned parallel web improves chip evacuation and reduces thrust load\u003c\/li\u003e\n  \u003cli\u003eScrew machine (stub) length provides maximum rigidity for tight-tolerance applications\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut, two-flute regular spiral flute design for standard drilling operations\u003c\/li\u003e\n  \u003cli\u003eDiameter tolerance of plus 0.0000 to minus 0.0005 inches for consistent hole sizing\u003c\/li\u003e\n  \u003cli\u003eISO-standard compliant construction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in standard drill chucks accepting a straight-cylindrical shank. Primary workpiece materials are cast iron and steel. Fits applications calling for a Wire Size 48 or 0.0760-inch diameter drill bit in screw machine length.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstall in a properly rated drill chuck and verify chuck is fully tightened before operation. Power down and de-energize the machine before bit changes. Use appropriate cutting fluid or coolant for steel and cast iron to maximize tool life, noting that this bit does not support coolant-through operation. Follow applicable shop safety standards and machine manufacturer guidelines for speed and feed rates.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 0.076 inches (Wire Size 48)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1-11\/16 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 11\/16 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\u003eTool Material\u003c\/strong\u003e: Cobalt M42\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral, Regular\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Split\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Parallel, Web-Thinned\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Length Type\u003c\/strong\u003e: Screw Machine\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTool Performance\u003c\/strong\u003e: Heavy Duty\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameter Tolerance\u003c\/strong\u003e: plus 0.0000 to minus 0.0005 inches\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\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ISO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 559\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\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: 50903\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CHICAGO-LATROBE","offers":[{"title":"Default Title","offer_id":51728514613554,"sku":"50903","price":44.17,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/f5d92ffa42f8cc5bf33a2250f5ce0e7b_3ca12ee5-17c9-4014-a829-351a3b4b4af2.jpg?v=1788692485","url":"https:\/\/voomisupply.com\/products\/chicago-latrobe-50903-screw-machine-drill-bit-0-076-in","provider":"Voomi Supply","version":"1.0","type":"link"}