{"product_id":"hertel-c-e07-0485-aircraft-extension-drill-bit-no-11","title":"Hertel C.E07.0485 Aircraft Extension Drill Bit No. 11","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HERTEL C.E07.0485 is a cobalt aircraft extension drill bit designed for drilling in tight spaces and hard-to-reach locations where standard-length bits cannot reach. Built from cobalt high-speed steel with a straw finish, this bit handles high-heat applications and harder materials without losing its edge. It carries a No. 11 wire gauge size with a decimal equivalent of 0.1910 inches, a 135-degree split point for self-centering entry, and a 12-inch overall length that provides the reach required in aerospace and structural fabrication work. The web-thinned, tapered web configuration reduces thrust and improves chip evacuation during deep drilling operations.\u003c\/p\u003e\u003cp\u003eThis extension drill bit is suited for aircraft assembly, sheet metal work, structural steel fabrication, and any application where deep reach or clearance past obstructions is required. The 135-degree split point eliminates the need for a center punch on most materials, and the right-hand spiral flute promotes efficient chip removal. It meets NAS 907 standards, making it appropriate for aerospace and defense maintenance work as well as general industrial applications where dimensional precision is critical.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCobalt construction provides heat and wear resistance for drilling harder materials\u003c\/li\u003e\n\u003cli\u003e135-degree split point is self-centering, reducing walking and eliminating center-punch steps\u003c\/li\u003e\n\u003cli\u003e12-inch overall length delivers extended reach for confined or obstructed work areas\u003c\/li\u003e\n\u003cli\u003eStraw finish indicates cobalt content and helps dissipate heat during high-speed drilling\u003c\/li\u003e\n\u003cli\u003eWeb-thinned tapered web reduces drilling thrust and improves chip flow\u003c\/li\u003e\n\u003cli\u003eMeets NAS 907 standard for aerospace and structural applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a general-purpose aircraft extension drill bit for use in standard straight-cylindrical shank chucks; suitable for hand drills, drill presses, and right-angle drill motors used in aerospace, sheet metal, and structural fabrication applications.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis bit is installed and removed by a licensed machinist, aircraft mechanic, or qualified fabricator using a compatible drill chuck sized for a 0.1910-inch straight-cylindrical shank. Secure the workpiece firmly before drilling and verify chuck tightness to prevent bit slippage at extended reach. Allow the bit to cool between deep drilling passes to preserve cobalt cutting edges, and avoid forcing the bit at reduced RPM in very hard stock without appropriate cutting fluid.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Wire)\u003c\/strong\u003e: No. 11\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal)\u003c\/strong\u003e: 0.1910 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: 2.3125 inches (2-5\/16 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.1910 inches\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\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\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: Cobalt\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Straw\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelf-Centering\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool Performance\u003c\/strong\u003e: General Purpose\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: NAS 907\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.09 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23241637\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: HERTEL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: C.E07.0485\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51737311740210,"sku":"C.E07.0485","price":34.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/496c85fcdeef55290eae54eedd3c3ced.jpg?v=1788786960","url":"https:\/\/voomisupply.com\/products\/hertel-c-e07-0485-aircraft-extension-drill-bit-no-11","provider":"Voomi Supply","version":"1.0","type":"link"}