{"product_id":"chicago-latrobe-50911-screw-machine-drill-bit-0-0465-in","title":"Chicago-latrobe 50911 Screw Machine Drill Bit 0.0465 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe CHICAGO-LATROBE 50911 is a screw machine length cobalt drill bit designed for high-performance drilling in ferrous metals, cast iron, and steel. Built to Series 559 heavy-duty standards, this bit features a 135-degree split point that reduces walking and allows for clean entry without a center punch. The web-thinned, parallel web construction reduces thrust during penetration. At 0.0465 inches in diameter (Wire Size 56), it delivers tight-tolerance drilling with a diameter tolerance of +0.0000 to -0.0005 inches. Manufactured from M42 cobalt, this bit handles elevated heat and maintains edge integrity at cutting speeds that would degrade standard high-speed steel tooling.\u003c\/p\u003e\n\u003cp\u003eThis bit is suited for production machining and fabrication environments where short, rigid tooling is preferred over jobber-length bits. Screw machine length bits are commonly used in drill presses, CNC turret lathes, screw machines, and gang drill setups. The right-hand spiral flute and straight cylindrical shank ensure compatibility with standard chuck configurations. Primary workpiece materials include cast iron and steel, making this bit a go-to for metal fabrication shops, maintenance machinists, and production line tooling setups where small-diameter precision holes are required on a repetitive basis.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eM42 cobalt material grade for heat resistance and extended tool life in ferrous metals\u003c\/li\u003e\n  \u003cli\u003e135-degree split point reduces thrust and eliminates center-punching on most metals\u003c\/li\u003e\n  \u003cli\u003eWeb-thinned parallel web construction lowers cutting resistance\u003c\/li\u003e\n  \u003cli\u003eTight diameter tolerance of +0.0000 to -0.0005 inches for precision hole sizing\u003c\/li\u003e\n  \u003cli\u003eScrew machine length body provides added rigidity compared to jobber-length equivalents\u003c\/li\u003e\n  \u003cli\u003eISO standards compliant, heavy-duty grade designation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a screw machine length replacement or production tooling option for applications requiring Wire Size 56 (0.0465 inches) diameter holes in cast iron and steel workpieces. Compatible with standard straight-cylindrical shank chucks across drill presses, CNC turret lathes, and screw machine setups.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis bit is intended for use by machinists and production tooling professionals. Secure the straight cylindrical shank fully in the chuck before operation and verify runout with appropriate measuring tools if tolerance-critical holes are required. Use cutting fluid or coolant appropriate for the workpiece material to extend tool life, noting this bit does not support coolant-through configurations. Inspect the cutting edges for wear regularly, as small-diameter cobalt bits can chip if feed rates or speeds are not matched to the workpiece material.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 0.0465 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Wire)\u003c\/strong\u003e: 56\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1.375 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 0.5 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: M42 Cobalt\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: 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\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpiral Type\u003c\/strong\u003e: Regular\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\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Thinning\u003c\/strong\u003e: Web-Thinned\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\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: +0.0000 to -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\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: 50911\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CHICAGO-LATROBE","offers":[{"title":"Default Title","offer_id":51737045369138,"sku":"50911","price":45.72,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/f5d92ffa42f8cc5bf33a2250f5ce0e7b_c24b2d19-58af-47d1-b8c8-1d8fc868f013.jpg?v=1788783580","url":"https:\/\/voomisupply.com\/products\/chicago-latrobe-50911-screw-machine-drill-bit-0-0465-in","provider":"Voomi Supply","version":"1.0","type":"link"}