{"product_id":"chicago-latrobe-70320-letter-t-jobber-drill-bit-hss-tin","title":"Chicago-latrobe 70320 Letter T Jobber Drill Bit Hss Tin","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe CHICAGO-LATROBE 70320 is a jobber length drill bit sized to Letter T (0.3580 inches) and built from high speed steel with a titanium nitride (TiN) coating. The TiN coating reduces friction and extends cutting life compared to uncoated HSS bits. At 4-7\/8 inches overall length with a 3-1\/2 inch flute, this is a standard jobber proportion suited to drill presses, hand drills, and CNC drilling operations. The 118-degree standard point angle and web-thinned tip reduce thrust and improve center starting on flat stock. This bit is installed and used by machinists, maintenance technicians, and metalworking tradespeople working in production or job-site environments.\u003c\/p\u003e\n\u003cp\u003eThis drill bit is designed for general-purpose drilling in cast iron and steel. The right-hand spiral flute efficiently evacuates chips from the bore during drilling. The straight cylindrical shank at 0.3580 inches diameter fits standard three-jaw chucks without adapters. The regular spiral and tapered web configuration make it appropriate for both through-hole and blind-hole applications in metal fabrication, maintenance repair, and manufacturing environments. It is sold individually as a single-piece unit.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eLetter T size: 0.3580 inches diameter with a diameter tolerance of -0.0010 to 0.0000 inches\u003c\/li\u003e\n  \u003cli\u003eTitanium nitride (TiN) coating for reduced friction and extended tool life\u003c\/li\u003e\n  \u003cli\u003e118-degree standard point angle with web-thinned tip for reduced entry thrust\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut, 2-flute regular spiral for efficient chip evacuation\u003c\/li\u003e\n  \u003cli\u003eStraight cylindrical shank fits standard drill chucks directly\u003c\/li\u003e\n  \u003cli\u003eConforms to DIN 338 standard for jobber length geometry\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a general-purpose jobber length drill bit for use in standard three-jaw drill chucks on hand drills, drill presses, and CNC drilling equipment. Primary workpiece materials are cast iron and steel.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eSecure the shank fully in the chuck before drilling and verify the chuck key is removed before powering the drill. Power down and de-energize any machine tool before changing bits. Use cutting fluid or coolant when drilling ferrous metals to preserve coating life and edge sharpness, noting this bit does not have a through-coolant channel. Follow applicable machine tool safety standards and shop safety procedures when operating drilling equipment.\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: T\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal Inch)\u003c\/strong\u003e: 0.3580 inches\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\u003eOverall Length\u003c\/strong\u003e: 4-7\/8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 3-1\/2 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.3580 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 1.3750 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\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\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: Tapered, Web-Thinned\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\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\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\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\u003eWeight\u003c\/strong\u003e: 0.6 pounds\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: 70320\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CHICAGO-LATROBE","offers":[{"title":"Default Title","offer_id":51728612163890,"sku":"70320","price":23.68,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/64400a7995bb60aa1d5d5bf8fff830c7.jpg?v=1788693969","url":"https:\/\/voomisupply.com\/products\/chicago-latrobe-70320-letter-t-jobber-drill-bit-hss-tin","provider":"Voomi Supply","version":"1.0","type":"link"}