{"product_id":"precision-twist-drill-6001393-aircraft-extension-drill-bit","title":"Precision Twist Drill 6001393 Aircraft Extension Drill Bit","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe PRECISION TWIST DRILL 6001393 is a high speed steel aircraft extension drill bit designed for deep-reach drilling applications where standard-length bits cannot access the worksite. Built to Series 500-12 specifications, this bit measures 31\/64 inch (0.4844 inch decimal) in diameter with a 4-3\/8 inch flute length and a 12 inch overall length, making it the right choice for drilling through structural assemblies, aircraft frames, and deep-cavity workpieces. The 135-degree split point is self-centering, eliminating the need for a center punch on most materials. An oxide finish provides basic surface protection. Two right-hand spiral flutes clear chips efficiently during drilling operations.\u003c\/p\u003e\n\u003cp\u003eThis drill bit is suited for metalworking applications in aerospace, fabrication, and general manufacturing environments. The extended 12 inch overall length is specifically built for applications requiring reach beyond standard drill extensions, such as drilling through structural members, deep channels, or confined spaces on aircraft airframes and industrial assemblies. It is used by machinists, aviation maintenance technicians, and fabricators working with aluminum, mild steel, and similar materials. The straight-cylindrical shank fits standard three-jaw drill chucks without an adapter.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e135-degree split point with self-centering tip reduces walking and eliminates most center-punch requirements\u003c\/li\u003e\n  \u003cli\u003e12 inch overall length provides extended reach for deep-cavity and structural drilling\u003c\/li\u003e\n  \u003cli\u003eHigh speed steel construction handles general-purpose metalworking applications\u003c\/li\u003e\n  \u003cli\u003eOxide finish adds surface protection against moisture and minor corrosion\u003c\/li\u003e\n  \u003cli\u003eTapered web with web thinning reduces thrust force and eases penetration\u003c\/li\u003e\n  \u003cli\u003eMeets NAS 907 Type B standard for aircraft-quality drill bit performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style aircraft extension drill bit compatible with standard three-jaw drill chucks accepting a 31\/64 inch straight-cylindrical shank. Meets NAS 907 Type B standards for use in aerospace and general metalworking applications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis bit is installed and operated by machinists, aviation maintenance technicians, and metalworking professionals using standard drill presses, magnetic drills, or hand-held electric drills with a compatible chuck. Secure the shank fully in the chuck before operation and verify the workpiece is clamped to prevent rotation. Appropriate cutting fluid or lubricant should be used when drilling steel to extend bit life and manage heat buildup. Follow applicable workplace safety standards and aviation maintenance manual procedures when working on aircraft structures.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size\u003c\/strong\u003e: 31\/64 inch (0.4844 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 12 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 4-3\/8 inches (4.3750 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 31\/64 inch (0.4844 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\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, Self-Centering\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\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: Tapered, 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: Oxide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 500-12\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e: NAS 907 Type B\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.167 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: 6001393\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PRECISION TWIST DRILL","offers":[{"title":"Default Title","offer_id":51695818965298,"sku":"6001393","price":73.04,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/00c62afe4afb4c768fcc83692ac48d80_39d2ea01-7af2-48df-9ab3-f478f6931b6a.jpg?v=1788338493","url":"https:\/\/voomisupply.com\/products\/precision-twist-drill-6001393-aircraft-extension-drill-bit","provider":"Voomi Supply","version":"1.0","type":"link"}