{"product_id":"precision-twist-drill-6001449-aircraft-extension-drill","title":"Precision Twist Drill 6001449 Aircraft Extension Drill","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe PRECISION TWIST DRILL 6001449 is a high speed steel aircraft extension drill bit designed for deep-reach drilling applications where a standard-length bit cannot access the work area. Built to Series 501-12 specifications, this bit features a 135-degree split point for self-centering entry without a pilot hole, reducing walking and improving hole accuracy on metal and composite substrates. The 0.196-inch diameter corresponds to Wire Size 9 and is finished with an oxide coating for basic corrosion and wear resistance. At 12 inches overall length with a 2.4375-inch spiral flute, it gives trades the reach needed for airframe, structural, and fabrication drilling tasks.\u003c\/p\u003e\n\u003cp\u003eThis bit is suited for production and maintenance drilling in aerospace fabrication shops, sheet metal work, and structural assembly environments. The straight-cylindrical shank seats in standard drill chucks without adapters. The right-hand spiral flute and web-thinned, tapered web geometry promote chip evacuation in deep-hole applications. Licensed HVAC, electrical, and mechanical contractors also reach for aircraft extension bits when drilling through deep structural members or confined cavities during system installation. General-purpose tool performance makes it appropriate for steel, aluminum, and similar materials at typical shop speeds.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e135-degree split point is self-centering — no center punch or pilot hole required\u003c\/li\u003e\n  \u003cli\u003e12-inch overall length provides extended reach into deep or confined work areas\u003c\/li\u003e\n  \u003cli\u003eWire Size 9 (0.196-inch diameter) straight-cylindrical shank fits standard chucks directly\u003c\/li\u003e\n  \u003cli\u003eWeb-thinned, tapered web reduces thrust and improves chip clearance in deep holes\u003c\/li\u003e\n  \u003cli\u003eOxide finish provides baseline corrosion resistance for shop and field storage\u003c\/li\u003e\n  \u003cli\u003eConforms to NAS 907 Type B standards for aircraft-grade drilling applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a general-purpose aircraft extension drill bit conforming to NAS 907 Type B; compatible with any standard drill chuck accepting a 0.196-inch straight-cylindrical shank.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eAircraft extension drill bits are installed and used by machinists, sheet metal mechanics, and trade professionals working in structural or deep-cavity applications. Secure the shank fully in the chuck before operation to prevent runout or bit ejection. Use appropriate cutting fluid or lubricant when drilling ferrous metals to extend bit life and improve hole finish. Operate at speeds appropriate for the material and bit diameter; consult published feeds-and-speeds charts for high speed steel bits in the target material.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Wire)\u003c\/strong\u003e: 9\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 0.196 inches\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: 2.4375 inches (2-7\/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\u003eSelf-Centering\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.196 inches\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\u003eFlute Length to Diameter Ratio\u003c\/strong\u003e: 4xD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Tapered\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Thinning\u003c\/strong\u003e: 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\u003eTool Performance\u003c\/strong\u003e: General Purpose\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 501-12\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: NAS 907 Type B\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.083 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: 6001449\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PRECISION TWIST DRILL","offers":[{"title":"Default Title","offer_id":51691464229170,"sku":"6001449","price":29.04,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/da3496e4617881f200db3c68936287ae_c9eaad76-bc3c-4746-ae06-63b552fcb810.jpg?v=1788285454","url":"https:\/\/voomisupply.com\/products\/precision-twist-drill-6001449-aircraft-extension-drill","provider":"Voomi Supply","version":"1.0","type":"link"}