{"product_id":"precision-twist-drill-5999423-screw-machine-drill-bit","title":"Precision Twist Drill 5999423 Screw Machine Drill Bit","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe PRECISION TWIST DRILL 5999423 is a screw machine length drill bit designed for high-performance drilling in demanding trade and industrial applications. Built from high speed steel with a coated finish, this bit features a 135-degree split point with web thinning that reduces walk and cutting force on entry. The straight-cylindrical shank measures 15\/32 inch (0.4688 inches) in diameter with a regular spiral flute configuration, making it suitable for use in standard drill chucks and machining equipment. It is a right-hand cut bit and does not require coolant-through capability. At 3-5\/8 inches overall length with a 2-1\/8 inch flute length, it fits the compact profile needed for stub-length drilling setups.\u003c\/p\u003e\n\u003cp\u003eThis bit is intended for use in screw machine operations, production drilling, and precision shop environments where tight tolerances and controlled entry are required. Its heavy duty grade and high performance classification make it appropriate for machinists, pipefitters, and fabricators working with titanium and other challenging workpiece materials. The R40C series designation and compliance with ANSI and NAS 907 specifications position it for applications where material standards are specified on engineering drawings or work orders.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e135-degree split point with web thinning reduces walking and lowers thrust required at entry\u003c\/li\u003e\n  \u003cli\u003eHigh speed steel construction with coated finish for extended tool life in abrasive materials\u003c\/li\u003e\n  \u003cli\u003eScrew machine (stub) length provides increased rigidity compared to jobber length bits\u003c\/li\u003e\n  \u003cli\u003eRight-hand spiral flute evacuates chips efficiently during through-hole drilling\u003c\/li\u003e\n  \u003cli\u003eStraight-cylindrical shank fits standard 3-jaw chucks and collets without adapters\u003c\/li\u003e\n  \u003cli\u003eMeets ANSI and NAS 907 specifications for use in controlled manufacturing environments\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or direct-use drill bit for screw machine and production drilling setups requiring a 15\/32 inch diameter right-hand cut stub-length bit. Primary workpiece material is titanium, though the R40C high speed steel series is also applied in general heavy duty drilling contexts per ANSI and NAS 907 standards.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and use of this drill bit should be performed by qualified machinists or trade professionals familiar with proper drill press, lathe, or CNC setup procedures. Ensure the machine is fully powered down and the spindle is locked before changing bits. Confirm chuck or collet is tightened to the manufacturer specification for the machine in use before initiating a cut. Always wear appropriate PPE including eye protection when operating drilling equipment, and verify workpiece is securely fixtured before cutting.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 0.4688 inches (15\/32 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3-5\/8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 2-1\/8 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: 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\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Split Point\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral, Regular\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Tapered, Web-Thinned\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute by Diameter Ratio\u003c\/strong\u003e: 2.5xD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Length Type\u003c\/strong\u003e: Screw Machine\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Titanium\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Grade\u003c\/strong\u003e: Heavy Duty\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: R40C\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ANSI, NAS 907\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.78 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: PRECISION TWIST DRILL\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 5999423\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PRECISION TWIST DRILL","offers":[{"title":"Default Title","offer_id":51689450111282,"sku":"5999423","price":25.86,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/f136c07cd5569312037606848389928f.jpg?v=1788259683","url":"https:\/\/voomisupply.com\/products\/precision-twist-drill-5999423-screw-machine-drill-bit","provider":"Voomi Supply","version":"1.0","type":"link"}