{"product_id":"chicago-latrobe-49410-screw-machine-drill-bit-wire-40","title":"Chicago-latrobe 49410 Screw Machine Drill Bit Wire 40","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe CHICAGO-LATROBE 49410 is a screw machine length drill bit designed for high-production drilling in cast iron and steel. Built from heavy-duty high speed steel with a coated finish, this bit features a 135-degree split point that reduces walking and cutting force on entry. The web-thinned, parallel-web construction keeps the cutting geometry consistent across the full working life of the bit. At 0.098 inches in diameter (Wire Size 40) and an overall length of 1-13\/16 inches, the shortened flute and body length add rigidity for accurate, tight-tolerance holes in screw machine and turret lathe applications. Diameter tolerance is held to +0.0000 to -0.0005 inches, meeting NAS 907 and ISO standards.\u003c\/p\u003e\n\u003cp\u003eThis bit is a fit for production environments where short, rigid tooling is required, including screw machine operations, automatic lathes, and bench drill press work on ferrous metals. The right-hand spiral flute efficiently clears chips from cast iron and steel workpieces. The straight-cylindrical shank seats securely in standard drill chucks and collets. Series 159 is a heavy-duty product line intended for shops running tight tolerances and higher feed rates than general-purpose bits can sustain reliably.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e135-degree split point reduces thrust and eliminates center-punch requirements on most steel surfaces\u003c\/li\u003e\n  \u003cli\u003eWeb-thinned parallel web maintains cutting efficiency and reduces heat buildup\u003c\/li\u003e\n  \u003cli\u003eHeavy-duty high speed steel construction rated for cast iron and steel workpieces\u003c\/li\u003e\n  \u003cli\u003eScrew machine length body adds rigidity and reduces deflection versus jobber-length bits\u003c\/li\u003e\n  \u003cli\u003eDiameter tolerance of +0.0000 to -0.0005 inches meets NAS 907 and ISO specifications\u003c\/li\u003e\n  \u003cli\u003eCoated finish for extended tool life in production drilling cycles\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or production-stock drill bit for screw machine operations, turret lathes, and automatic drilling equipment cutting cast iron and steel. No coolant-through capability; intended for dry or external coolant applications only.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis bit is installed by machinists and toolroom technicians in standard drill chucks or collets sized for straight-cylindrical shanks. Secure chuck engagement across the full shank length before operation to prevent slipping under load. When replacing a worn bit in a production setup, verify spindle speed and feed rate are appropriate for the workpiece material and bit diameter before resuming the run. No coolant-through port is present; apply external cutting fluid as required by shop procedure for steel applications.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 0.098 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWire Size\u003c\/strong\u003e: 40\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1-13\/16 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 13\/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\u003ePoint Type\u003c\/strong\u003e: Split\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: High Speed Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Coated\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\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\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\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\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 159\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: NAS 907, ISO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.0037 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: 49410\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CHICAGO-LATROBE","offers":[{"title":"Default Title","offer_id":51729611981106,"sku":"49410","price":34.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/05636a72436075bdc845c772f84a04f0.jpg?v=1788706746","url":"https:\/\/voomisupply.com\/products\/chicago-latrobe-49410-screw-machine-drill-bit-wire-40","provider":"Voomi Supply","version":"1.0","type":"link"}