{"product_id":"chicago-latrobe-50904-screw-machine-drill-bit-0-073-in-cobalt","title":"Chicago-latrobe 50904 Screw Machine Drill Bit 0.073 in Cobalt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe CHICAGO-LATROBE 50904 is a screw machine length cobalt drill bit designed for high-performance drilling in ferrous metals including cast iron and steel. At 0.073 inches in diameter (Wire Size 49), it features a 135-degree split point that reduces walking and cutting pressure on entry. The M42 cobalt material grade provides heat resistance and edge retention under heavy-duty drilling conditions. With a total length of 1-11\/16 inches and a flute length of 11\/16 inch, this stub-length bit delivers rigidity and accurate hole placement in production and repair drilling applications. It is used individually and sold per piece with a minimum order of 12.\u003c\/p\u003e\n\u003cp\u003eThis bit is built for trade professionals who drill into cast iron, carbon steel, and alloy steel in production machining, HVAC equipment fabrication, mechanical contracting, and industrial maintenance environments. The screw machine (stub) length format is preferred when rigidity matters more than depth reach, such as when drilling in tight clearances or on drill presses where chatter control is critical. The right-hand spiral flute evacuates chips efficiently, and the web-thinned, parallel-web construction reduces thrust requirements on the workpiece.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eM42 cobalt construction for heat resistance and extended tool life in ferrous metals\u003c\/li\u003e\n  \u003cli\u003e135-degree split point reduces bit walking and lowers entry thrust force\u003c\/li\u003e\n  \u003cli\u003eWeb-thinned parallel web design decreases drilling resistance\u003c\/li\u003e\n  \u003cli\u003eScrew machine (stub) length provides increased rigidity versus jobber-length bits\u003c\/li\u003e\n  \u003cli\u003eStraight-cylindrical shank fits standard three-jaw drill chucks\u003c\/li\u003e\n  \u003cli\u003eDiameter tolerance of +0.0000 to -0.0005 inches for consistent hole sizing\u003c\/li\u003e\n  \u003cli\u003eMeets ISO standards; Series 559 heavy-duty classification\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement and production-use bit for applications requiring a Wire Size 49 (0.0730 inch) screw machine length drill bit compatible with standard straight-shank drill chucks. Primary workpiece materials are cast iron and steel.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by machinists, tool-and-die technicians, mechanical contractors, and HVAC fabrication professionals. Secure the straight-cylindrical shank firmly in a properly sized drill chuck before operation, and ensure the chuck key is removed before starting the spindle. When drilling cast iron or hardened steel, use appropriate cutting fluid or coolant where the machine setup allows, and reduce feed pressure to avoid overloading the small-diameter cutting edge. Inspect the bit for chipping or wear before each use, as small-diameter cobalt bits can fracture without visible warning if run at incorrect speeds or feeds.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 0.073 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWire Size\u003c\/strong\u003e: 49\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 Length Type\u003c\/strong\u003e: Screw Machine (Stub)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: Cobalt\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: M42\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\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\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpiral Type\u003c\/strong\u003e: Regular\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\u003eWeb Configuration\u003c\/strong\u003e: Parallel Web-Thinned\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 -0.0005 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 559\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTool Performance\u003c\/strong\u003e: Heavy-Duty\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ISO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Order Quantity\u003c\/strong\u003e: 12\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: 50904\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CHICAGO-LATROBE","offers":[{"title":"Default Title","offer_id":51730804277554,"sku":"50904","price":43.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/f5d92ffa42f8cc5bf33a2250f5ce0e7b_e67fac53-f27e-4a6f-8f22-742994db18ea.jpg?v=1788723119","url":"https:\/\/voomisupply.com\/products\/chicago-latrobe-50904-screw-machine-drill-bit-0-073-in-cobalt","provider":"Voomi Supply","version":"1.0","type":"link"}