{"product_id":"chicago-latrobe-70314-letter-n-hss-tin-drill-bit","title":"Chicago-latrobe 70314 Letter N Hss Tin Drill Bit","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe CHICAGO-LATROBE 70314 is a jobber length drill bit sized to Letter N (0.3020 inches) with a 118-degree standard point angle. It is manufactured from high speed steel with a titanium nitride (TiN) coating that increases surface hardness and extends tool life in repetitive drilling applications. The bit features a right-hand spiral flute with web thinning and a tapered web configuration to reduce thrust and improve chip evacuation. Overall length is 4.375 inches with a 3.0625-inch flute length and a straight-cylindrical shank. This bit is suited for machinists, maintenance technicians, and trade professionals who require a general-purpose jobber drill for production or field use.\u003c\/p\u003e\n\u003cp\u003eThe 70314 is rated for use in cast iron and steel as primary workpiece materials, making it a practical choice for HVAC, plumbing, and electrical trades when drilling into ferrous fastener points, structural steel members, or cast iron fittings. The 2-flute spiral design and TiN coating support repeated use across common trade drilling tasks. The straight-cylindrical shank fits standard three-jaw drill chucks found on corded drills, drill presses, and right-angle drill attachments. This bit carries the Series 150T designation and meets DIN 338 standards for jobber length geometry.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eLetter N size, 0.3020 inches diameter, with a diameter tolerance of -0.0010 to 0.0000 inches\u003c\/li\u003e\n  \u003cli\u003e118-degree standard point angle with web-thinned, tapered web for reduced drilling thrust\u003c\/li\u003e\n  \u003cli\u003eTitanium nitride (TiN) coating over high speed steel for increased wear resistance\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut, 2-flute regular spiral design promotes efficient chip removal\u003c\/li\u003e\n  \u003cli\u003eStraight-cylindrical shank compatible with standard drill chucks\u003c\/li\u003e\n  \u003cli\u003eMeets DIN 338 jobber length standard; Series 150T general-purpose classification\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a general-purpose jobber length drill bit compatible with any standard three-jaw drill chuck that accepts a 0.3020-inch straight-cylindrical shank. Rated for cast iron and steel workpiece materials per Series 150T specifications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstall into a properly sized drill chuck and tighten securely before use. Machinists and trade technicians should verify chuck capacity matches the 0.3020-inch shank diameter before seating the bit. Use appropriate cutting fluid or coolant when drilling steel to manage heat buildup, particularly in production or deep-hole applications. Inspect the cutting edges and TiN coating for wear before each use and replace if chipping or diameter undersize is observed.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Letter)\u003c\/strong\u003e: N\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal Inch)\u003c\/strong\u003e: 0.3020 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 118 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 4.375 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 3.0625 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.3020 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 1.3125 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpiral Type\u003c\/strong\u003e: Regular\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral\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\u003eDrill Bit Material\u003c\/strong\u003e: High Speed Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\/Coating\u003c\/strong\u003e: Titanium Nitride (TiN)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Standard\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Tapered, 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\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameter Tolerance\u003c\/strong\u003e: -0.0010 to 0.0000 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 150T\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e: DIN 338\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTool Performance\u003c\/strong\u003e: General Purpose\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.4 pounds\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: 70314\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CHICAGO-LATROBE","offers":[{"title":"Default Title","offer_id":51747612197170,"sku":"70314","price":19.73,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/64a7647fbcf4c9e72b7e2e1486cd5882.jpg?v=1788883436","url":"https:\/\/voomisupply.com\/products\/chicago-latrobe-70314-letter-n-hss-tin-drill-bit","provider":"Voomi Supply","version":"1.0","type":"link"}