{"product_id":"chicago-latrobe-49409-screw-machine-drill-bit-0-0995-in","title":"Chicago-latrobe 49409 Screw Machine Drill Bit 0.0995 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe CHICAGO-LATROBE 49409 is a heavy-duty screw machine length drill bit designed for high-speed steel cutting applications in metal fabrication and machining environments. With a 0.0995-inch diameter (Wire Size 39) and a 135-degree split point, this bit delivers fast starts without center punching and reduces walking on entry. The shortened screw machine length body provides added rigidity compared to jobber-length bits, making it the go-to choice for drill press, CNC, and turret lathe operations where chatter and deflection must be minimized. Machinists and tool-room technicians are the primary users of this bit.\u003c\/p\u003e\n\u003cp\u003eThis bit is built for drilling cast iron and steel workpieces in production and job-shop environments. The regular spiral flute geometry promotes efficient chip evacuation during through-hole and blind-hole drilling. Its straight-cylindrical shank seats securely in standard drill chucks and collet holders. The Series 159 designation indicates compliance with NAS 907 and ISO standards, making it suitable for aerospace, industrial, and general metalworking applications where specification conformance is required.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e0.0995-inch diameter, Wire Size 39, with diameter tolerance of +0.0000 to -0.0005 inches for precision fitment\u003c\/li\u003e\n  \u003cli\u003e135-degree split point reduces thrust and eliminates the need for center punching\u003c\/li\u003e\n  \u003cli\u003eWeb-thinned, parallel web configuration for improved cutting efficiency and reduced heat buildup\u003c\/li\u003e\n  \u003cli\u003eScrew machine length body adds rigidity and reduces deflection in tight-clearance setups\u003c\/li\u003e\n  \u003cli\u003eHigh speed steel construction with coating for extended tool life on cast iron and steel\u003c\/li\u003e\n  \u003cli\u003eNAS 907 and ISO standards compliance for use in specification-controlled manufacturing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use on cast iron and steel workpieces. Fits standard drill chucks and collet holders that accept a straight-cylindrical shank. Suitable for drill press, CNC, and turret lathe setups requiring a screw machine length bit in the 0.0000 to 0.1000-inch diameter range.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eMachinists and tool-room technicians should ensure the shank is fully seated and the chuck is tightened securely before operation. Confirm spindle speed is appropriate for the workpiece material and bit diameter to avoid premature tool wear or breakage. Do not force the bit through material at excessive feed rates, particularly in harder steel grades. Inspect the cutting edges and point condition before each use; a damaged split point will compromise hole accuracy and increase thrust load.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 0.0995 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWire Size\u003c\/strong\u003e: 39\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\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\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\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\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\u003eCutting Direction\u003c\/strong\u003e: Right Hand\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\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\u003eSeries\u003c\/strong\u003e: 159\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpecification\u003c\/strong\u003e: NAS 907, NAS, 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: 49409\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CHICAGO-LATROBE","offers":[{"title":"Default Title","offer_id":51735159865650,"sku":"49409","price":35.16,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/9a251a277573334c4b1b863c3bbb41a6.jpg?v=1788769947","url":"https:\/\/voomisupply.com\/products\/chicago-latrobe-49409-screw-machine-drill-bit-0-0995-in","provider":"Voomi Supply","version":"1.0","type":"link"}